Debabrata Das

Professor

Email: ddas@iiitb.ac.in

Education

  • Ph.D. (Indian Institute of Technology Kharagpur)

Dr. Debabrata Das is serving as Professor and Hewlett Packard Chair at IIIT-Bangalore (IIITB). Before joining IIIT-B, he had served at G S Sanyal School of Telecommunication at IIT Kharagpur and later at Kirana Networks in New Jersey, USA. He is CoPI of a project from Ministry of Electronics and Information Technology, Government of India on Smart Home and PI of a project on IoT interworking from Bell-Lab Nokia Research India. He was PI of sponsored projects from Intel, Hewlett Packard, Microsoft, Motorola Research, Nokia, Govt. of India on areas of IMS and Broadband Wireless MAC/QoS/Energy-saving, TVWS. His main areas of research interest are IoT and Wireless Access Network's MAC, QoS, Power saving. He has more than 105 peers reviewed papers in different Transaction/Journals and International Conferences. His 7 patents are under review. He and his wireless network team had contributed three ideas to IEEE 802.16m Broadband Wireless Standard. Dr. Das received his Ph.D. degree from the Indian Institute of Technology Kharagpur.

 

He has received IETE-Prof. K. Sreenivasan Memorial Award 2017 for excellent teaching in the areas of Telecommunication.  Dr. Das has received Global IEEE MGA Achievement Award 2012 and Outstanding Volunteer Award-2008 IEEE Bangalore Section. He is Fellow-IETE, Fellow-IE and SM-IEEE. He is Chairman of IEEE Bangalore Section and IT-Service Management Forum India (itSMF); Board Member of IIIT-Bhubaneswar; Technical and Empower Committee member of e-Governance for Govt. of Karnataka. Dr. Das was the first Dean-Academic and R&D of IIIT-Bangalore.

Research Interests

  • • Medium Access Control Protocol for Energy Saving and QoS for Wireless Access Networks as well as IoT ; IP Multimedia Subsystems ; Mobile Computing

Selected Publications

Contribution to IEEE standard on “4G Broadband Wireless Networks”

 

 

  1. Title of the contribution: Proposed Change for Acknowledging the Sleep Cycle Configuration Change Initiated Using Service Specific BR without STID Header in IEEE 802.16m

    Abstract: This contribution proposes methods to handle concurrent sleep cycle configuration change initiation in IEEE 802.16m.

    Contributors: Ritesh K Kalle, Debabrata Das, Shantidev Mohanty et. al.

    This has been accepted in IEEE 4G Broad Band Standard by review and voting on dated 18th March 2010, at Orlando, USA.
     
  2. Title of work: Proposed Change for  Handling Concurrent Sleep Cycle Configuration Change Initiation  in IEEE 802.16m

    Abstract: This contribution proposes amendments in the manner IEEE 802.16m ABS and AMS behave when there are concurrent requests for Sleep Cycle Setting Change or Switch handled at AMS and ABS.

    Contributors: Ritesh K Kalle, Debabrata Das, Shantidev Mohanty et. al.

    This has been accepted in IEEE 4G Broad Band Standard by review and voting on dated 18th March 2010, at Orlando, USA.
     
  3. Title of contribution: “Enhanced Sleep Mode Mechanism in IEEE 802.16m”, Document No.“IEEE C802.16m-09/2518r1” has been accepted via Ballot for IEEE standard for “4G Broadband Wireless Access Networks” on 18th November 2009.

    Contributors: Ritesh K Kalle, Debabrata Das, Shantidev Mohanty et. al.

    Abstract: The contribution describes an enhanced mechanism to configure the low power operations on the mobile device (also known as Sleep Mode Mechanism) which has been optimized for Voice over IP (VoIP) sessions. The contribution improves the performance of the existing mechanism in the IEEE 802.16m  by saving power upto 80% during periods when the speaker is silent. Also, the signaling overhead has been reduced by approximately 75% when there is a transition from Silence to Active Talk phase. This additionally increases the VoIP capacity per  Base Station by approximately 2%. 

    The above works have been done in Wireless Network Lab. at IIIT-Bangalore, India, by Mr. Ritesh Kumar Kalle, Dr. Debabrata Das along with Dr. Shantidev Mohanty, Mobility Research Group of Intel at Santa Clara, USA.  

 

 

Peer Reviewed Journal Papers

  • Parthiban A, Jyotsna Bapat and Debabrata Das, “Coverage Enhancement for MTC Devices using Reduced Search Viterbi Decoder Across RATs”, accepted, (will be published September 2016[D1] ), IEEE Communication Letter.
     
  • Rajavelsamy R, Manoj Choudhary and Debabrata Das, “A Review on Evolution of 3GPP Systems Interworking with WLAN”, Journal of ICT Standardization, River Publishers, Denmark, Vol. 3, pp 133-156, Published In: December 2015.http://www.riverpublishers.com/journal_read_html_article.php?j=JICTS/3/2/2
     
  • V. Anil Kumar and Debabrata Das, “Data Enriched SACK: A Novel Acknowledgement Generation Scheme for Secure SCTP”, IEEE Communication Letter, Vol. 18, No. 12,  pp. 2109-2112, December 2014.
     
  • Balakrishnan K and Debabrata Das, “Evaluation and Optimization of Short TCP Completion Time over Wireless Broadband Access Networks”, Journal of Wireless Networks, Springer, December 2014.
     
  • Ritesh K Kalle and Debabrata Das, "Energy and Delay Constrained Scheduling of Real Time Traffic over OFDM Communication System with Non-causal Channel Information", Accepted eMail received on 3rd April 2014, Physical Communication, Elsevier.
     
  • Mohit Kumar and Debabrata Das, "Scaling Number of Active Links in Linux Kernel Bond Driver Having Heterogeneous Network  Interface", Wireless Personal Communication, Springer, March 2014.  http://link.springer.com/article/10.1007/s11277-014-1716-0
     
  • Jeffery Joseph, Roshan Gajanan Patil, Skanda Kumar Kaipu Narahari, Yogish Didagi, Jyotsna Bapat, and Debabrata Das, "Wireless Sensor Network Based Smart Parking System", Journals on Sensors & Transducers, Vol. 162 , Issue 1, , pp. 5-10, January 2014.  http://www.sensorsportal.com/HTML/DIGEST/P_1616.htm
     
  • Dibakar Das and Debabrata Das, "An Analytical Evaluation Approach for Control Plane Operations of a Multi-RAT Mobility Procedures in a User Equipment", Wireless Personal Communications, Springer, Vol. 69, No. 4, pp 1309-1332, April 2013.
     
  • Dibakar Das and Debabrata Das, “Relevance Based Power Saving Mechanism in Multi-RAT User Equipment”, Journal of Green Engineering, River Publisher, Vol. 2, Issue 2, pp 155-177,  2012.
     
  • Ronny Yongho Kim, Ritesh K Kalle, and Debabrata Das, “Joint Paging Area and Location Update Optimization for IEEE 802.16m Idle Mode”, Computer Networks, Elsevier, Accepted, 2011.
     
  • Sandhya Kulkarni, H. J. Thontadharya, J.T. Devaraju and Debabrata Das, “Performance Evaluation of VoIP in Mobile WiMAX; Simulation and Emulation studies”, International Journal on Computer Science and Engineering (IJCSE), Vol. 3, No. 3, pp 1124-1130, March 2011.
     
  • A. K. Talukder and Debabrata Das, “Mobile web for under-privileged in developing countries”, Journal of Telematics and Informatics, Elsevier, Volume 27, Issue 3, pp 350-359, August 2010.
     
  • A. K. Talukder and D. Das, `` Artificial Hygiene: Non-proliferation of Virus in Cellular Network”,Journal of System and Information Technology, Vol. 8, Issue 1, pp. 10-22, December 2004. http://www.business.ecu.edu.au/josit/
     
  • Debabrata Das, G. Dutta and Debasish Datta, “Packet-Error Rate Based Power Budget for Multiple Access WDM Networks with Subcarrier Multiplexed Control Packets”, IEEE Photonics Technology Letters, Vol. 12, No. 3, pp 359-361,  March 2000. 
     
  • Debabrata Das, S. S. Saini, and Debasish Datta, “Performance analysis of computer networks employing linked-cluster topology with single-wavelength and WDM optical backbone”, Computer Communication, Elsevier, Vol. 22, June 1999, pp. 840-848.

Peer Reviewed Papers at Conferences

  • Vishnupriya K P, Sasirekha GVK, Jyotsna Bapat, Debabrata Das, “Optimal Scheduling of Spectrum Sensing in LTE-A TDD Frame”, IEEE TENSYMP-2016, (IEEE Region 10 Symposium), 9th – 11th May, 2016, Sanur, Bali, Indonesia.
     
  • Dibakar Das and Debabrata Das, “Enhancement of Mobility through Reconfiguration of Base-stations in Multi-RAT Cellular Networks”, accepted in IEEE International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET-2016), 23rd – 25th March, 2016, Chennai, India.
     
  • Sarada Subramanian, Gangadhara Reddy Mallangi, Sasirekha GVK, Jyotsna Bapat, Debabrata Das, “Feasibility Study for Wi-Fi in the TV Whitespaces of Bangalore”, accepted in IEEE International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET-2016), 23rd – 25th March, 2016, Chennai, India.
     
  • Prashant K. Wali and Debabrata Das, “PS-SPS: Power Saving - Semi Persistent Scheduler for VoLTE in LTE-Advanced”, IEEE International Conference on Electronics Computing and Communication (CONECCT-2015), 10th – 11th July, 2015, Bangalore, India. 
     
  • Saptarshi Chaudhuri, Irfan Baig, and Debabrata Das, “Utility based QoS aware Uplink Scheduler Scheme for LTE Small Cell Network”, IEEE International Conference on Communication (ICC-2015), 8-12th June 2015, London, UK. 
     
  • Bivas Bhattattacharya and Debabrata Das, “Software Defined Network Controller Embedded in Mobile Device for User’s Policy Implementation”, IEEE International Conference on Industrial Instrumentation and Control (ICIC), 28-30th May 2015, Pune, India.
     
  • Parthiban Annamalai, Sajal Kumar Das, Jyotsna Bapat and Debabrata Das, “Coverage Enhancement of PBCH using Reduced Search Viterbi for MTC in LTE-Advanced Networks”, International Workshop on D2D Communications,  D2D May 25, 2015, 13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks; WiOpt 2015, 25-29 May, 2015, IIT Bombay, India.
     
  • Bivas Bhattattacharya and Debabrata Das, ”QoS Enhancement using Embedded Agent in OpenFlow based SDN Node”, IEEE International Conference on Electrical, Computing and Communication Technology (ICECCT-2015) 5-7th March 2015, Coimbatore, India.
     
  • Prashant K. Wali and Debabrata Das, “A Novel Access Scheme for IoT Communications in LTE-Advance Networks”, IEEE International Conference on Advance Networks and Telecommunication Systems (ANTS – 2014), 14th – 17th December, 2014, New Delhi, India.
     
  • Saptarshi Chaudhuri, Pradeep K R, and Debabrata Das, "Maximizing Spectral Efficiency for Cell Edge Users in LTE Small Cell network", IEEE International Conference on Communication and Signal Processing (ICCSP – 2014), 3rd – 5th  April, 2014, Melmaruvathur, TamilNadu, India.  
     
  • Bivas Bhattacharya and Debabrata Das, "SDN based Architecture for QoS Enabled Services Across Networks with Dynamic Service Level Agreement", IEEE International Conference on Advanced Networks and Telecommunication Systems (ANTS), 15-18 December, 2013, Chennai, India. 
     
  • Akansha Singh, Jyotsna Bapat and Debabrata Das, "Distributed Health Monitoring System for Control in Smart Grid Network", Presented in 2013 IEEE International Conference on Innovative Smart Grid Technologies Asia (ISGT-ASIA), 10-13 November, 2013, Bangalore, India. IEEEXplore: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6698765  
     
  • Akansha Singh, Jyotsna Bapat, and Debabrata Das, "Vulnerability Analysis of Power Grid Network Against Failure by State Classification", IEEE International Conference Electrical Power and Energy Conference (EPEC), Aug. 21-23, 2013 Halifax, Canada.http://sites.ieee.org/epec2013/files/2013/08/EPEC2013-final.pdf
     
  • Mohit Kumar and Debabrata Das, "Scaling Number of Active Links in a Linux Kernel Bond Driver having Heterogeneous Network Interfaces", International Conference on Mobility for Life: Technology, Telecommunication and Problem Based Learning, 2013 (TT-PBL'13), March 14-16, 2013, Nasik, India. (a few shortlisted good papers sent by conference TPC to Wireless Personal Communication, Springer; this paper was one of them).  
     
  • Akansha Singh, Jyotsna Bapat and Debabrata Das, "Two Tier Communication Architecture for Smart Meter", published in IEEE Communication Systems and Networks (COMSNETS), 7th – 10th January, 2013, Bangalore, India.Paper link IEEEXplore: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6465590&tag=1
     
  • Anil Kumar V and Debabrata Das, "Feedback Manipulation Flooding Attack: Feasibility Evaluation and Impact Quantification on Stream Control Transmission Protocol", The 7th International Conference for Internet Technology and Secured Transactions (ICITST-2012), December 10-12, London, UK.
     
  • Joseph Jeffery, Roshan G Patil, Shanda Kumar K N, Yogish D, Jyotsna Bapat and Debabrata Das, "Smart Parking System using Wireless Sensor Networks", The Sixth International Conference on Sensor Applications and Technologies (SENSORCOMM-2012), August 19-24 2012, Rome, Italy.  
     
  • Raghavendra Sunku and Debabrata Das, "Online Differential Charging for Blended Services Using Service Capability Interaction Manager in IMS Network" International Conference on Advances in Computing, Communications and Informatics (ICACCI-2012), 3-5 August, 2012, Chennai, India.
     
  • Ritesh K Kalle, Amar Kumar Nandan, and Debabrata Das, “La VoLTE:  novel cross Layer optimized mechanism of Video transmission over LTE for DRX”, IEEE International Conference on Vehicular Technology Conference (VTC 2012-Spring), 6-9 May, 2012, Yokohama,  Japan.
     
  • Saptarshi Chaudhuri, Debabrata Das, and Ranjish Bhaskaran, “Study of Advanced-Oportunistic Proportionate Fairness Scheduler for LTE Medium Access Control”, IEEE International Conference on Internet Multimedia Systems Architecture and Application (IEEE IMSAA-11), 12th – 14th Dec., 2011, Bangalore. 
     
  • Vivek Kumar Singh, Ritesh Kumar Kalle and Debabrata Das, “Study of Latency in Enhanced-PGLU (EPGLU) Timer Based Paging in IEEE 802.16m based WiMAX Networks”, IEEE International Conference on Internet Multimedia Systems Architecture and Application (IEEE IMSAA-11), 12th – 14th Dec., 2011, Bangalore.  
     
  • Raghavendra Sunku, Rohan Goveas Pascal, Madan Pande, and Debabrata Das, “Enabling Online Differential Charging for Blended Services in IMS networks”, IEEE International Conference on Internet Multimedia Systems Architecture and Application (IEEE IMSAA-11), 12th – 14th Dec., 2011, Bangalore.  
     
  • Dibakar Das and Debabrata Das, “Back-off Algorithm Based Power Saving Mechanism in a Multi-RAT UE”, IEEE International Conference on Internet Multimedia Systems Architecture and Application (IEEE IMSAA-11), 12th – 14th Dec., 2011, Bangalore.
     
  • Vivek K Singh, Ritesh K Kalle and Debabrata Das, “EPGLU: Enhanced PGLU Timer for Paging and Location Update Optimization in IEEE 802.16m based WiMAX Networks”, The 17th Asia-Pacific Conference on Communication, Kota Kinabalu, Sabah, Malaysia, 2-5th October, 2011.  
     
  • Vivek Kumar Singh, Suhas Hegde Ankadi and Debabrata Das, “Study of Combined Effects of Zero Copy and Pre-processing on Input/Output Performance of Multimedia on Demand Streaming Server”, IEEE International Conference on COMmunication Systems and NETworkS (COMSNETS’11), Jan. 4-8, 2011, Bangalore.
     
  • Raghavendra Sunku, Rohan Goveas Pascal, Madan Pande and Debabrata Das, “Offline Charging for Multimedia Blended Services Using Service Capability Interaction Manager in IMS Network”, IEEE International Conference on Internet Multimedia Systems Architecture and Application (IEEE IMSAA-10), 15th – 17th Dec., 2010, Bangalore, India.
     
  • Rohan Pascal Goveas, Raghavendra Sunku, Pranay Airan, Madan Pande, and Debabrata Das, “IMS Service Broker SCIM Enriching REST Based Web 2.0 Mashup”, IEEE International Conference on Internet Multimedia Systems Architecture and Application (IEEE IMSAA-10), 15th – 17th Dec., 2010, Bangalore, India.
     
  • Ritesh K Kalle, Maruti Gupta, Aran Bergman, Elad Levy, Shantidev Mohanty, Muthaiah Venkatachalam and Debabrata Das, “Advanced Mechanisms for Sleep Mode Optimization of VoIP Traffic over IEEE 802.16m”, IEEE GLOBECOM-2010, Miami, Florida, USA, 6-10 December, 2010.
     
  • Sandhya Kulkarni, Shwetha D, Devaraju J.T and D. Das, “Performance Evaluation of Mobile Multi-hop Relay WiMAX Network In Urban Environment”, International conference on Demand Computing (ICoDC), Bangalore, 3rd – 4th November, 2010.
     
  • Vishal Karira, Suvarna Kharidehal and Debabrata Das,"Selective Multicast Protocol for Wireless Body Area Networks (W-BAN) for Power Conservation," Accepted for Publication, INDICON 2009 - An IEEE India Council International Conference, Dec 18-20, 2009, Ahmedabad.
     
  • Yogesh Joshi, Debabrata Das, and Subir Saha, “Mitigating Man in the Middle Attack over Secure Sockets Layer”, IEEE International Conference on Internet Multimedia Systems Architecture and Applications (IMSAA-09), Dec 9 -11, 2009, Bangalore. India.
     
  • Rohan Pascal, Raghavendra Sunku, Madan Pande and Debabrata Das, “Workflow based Design for Blending Services over IP Multimedia Subsystems (IMS) with Service Capability Interaction Manager ”, IEEE International Conference on Internet Multimedia Systems Architecture and Applications (IMSAA-09), Dec 9 -11, 2009, Bangalore, India.
     
  • Ritesh Kalle, Mayank Raj, Balakrishnan K and Debabrata Das,"WEBS : WiMAX Emulation Testbed to Benchmark Streaming Multimedia QoS," Accepted for Publication, IEEE International Conference on Internet Multimedia Systems Architecture and Applications (IMSAA-09), Dec 9 -11, 2009, Bangalore
     
  • Ritesh K. Kalle, Mayank Raj, and Debabrata Das, “A Novel Architecture for IEEE 802.16m Subscriber Station for Joint Power Saving Class Management”, IEEE COMSOC sponsored International Conference on COMmunication Systems and NETworkS (COMSNETS 09), Jan. 5-10, 2009, Bangalore.
     
  • Dibakar Das and Debabrata Das, “Evaluation of Mobile Handset Recovery from Radio Link Failure in a Multi-RATs Environment”, IEEE COMSOC sponsored 2nd International Conference on Internet Multimedia Services Architecture and Application (IMSAA-08), 10-12th December, 2008, Bangalore, India.
     
  • Rohan Pascal, Raghavendra Sunku, and Debabrata Das, “Centralized Service Capability Interaction Manager (SCIM) Architecture to Support Dynamic Blending of Services for IMS Network”, IEEE COMSOC sponsored 2nd International Conference onInternet Multimedia Services Architecture and Application (IMSAA-08), 10-12thDecember, 2008, Bangalore, India.
     
  • Yogesh Joshi, Samir Saklikar, Debabrata Das and Subir Saha, “PhishGuard: A Browser Plug-in for Protection from Phishing”, IEEE COMSOC sponsored 2nd International Conference on Internet Multimedia Services Architecture and Application (IMSAA-08), 10-12th December, 2008, Bangalore, India.
     
  • Vidya Sagar and Debabrata Das, “Modified EDF Algorithm and WiMAX Architecture to Ensure End-to-End Delay in Multihop Network”, IEEE TENCON, November 18-21, 2008, Hydrabad, India. 
     
  • Debabrata Das, Vidya Sagar, and Ritesh K. Kalle, “Wi-MuMe: WiMAX MuLTIHOP MeSH – A Relay Based Approach to Deliver Broadband to Rural Community”,International Conference on Communication Convergence and Broadband Networking (ICCBN-08), July 17-20, 2008, Bangalore, India.
     
  • Ritesh Kalle, Pravin Angolkar, Debabrata Das, and Ramakrishnan Ramalingam, “SWiFT: A Novel Architecture for Seamless Wireless Internet for Fast Train”, IEEE International Conference on Vehicular Technology Conference (VTC-08), 11-14 May, 2008, Marina Bay,  Singapore.
     
  • Goutam Dutta and Debabrata Das, “Performance Study of an Optical Backbone MAC Interconnecting WiMAX Base Stations over City/County Area”, IEEE International Conference on Wireless Optical Communication Network (WOCN-08), May 5-7, 2008, Surabaya Indonesia.
     
  • Amitkeerti M Lagre and Debabrata Das, “Judicious Use of Algorithm for Poll-Me Bit with Active UGS connection in IEEE 802.16e to Increase the Performance”, IET International Conference on Wireless Mobile & Multimedia Conference, Jan. 11-12, 2008, Mumbai, India.
     
  • Joseph Thaliath, Mabel Mary Joy, Elizabeth Priya John, and Debabrata Das, “Service Class Downlink Scheduling in WiMAX”, IEEE International conference on COMmunication System softWAre and middlewaRE (COMSWARE 2008), Jan 5-10, 2008, Bangalore, India.
     
  • Ritesh Kalle, Vidya Sagar, Sumit Kumar, Abhijit Lele, and Debabrata Das, “A Novel Interface Gateway Architecture for Seamless Interoperability between 802.11e and 802.16e”, IEEE International conference on COMmunication System softWAre and middlewaRE (COMSWARE 2008), Jan 5-10, 2008, Bangalore, India.
     
  • Siddharth Pande, Vikram Jain, Debabrata Das, Vincent Planat, and Raghupati Periannan, “Performance Study of IMS Signaling Plane’’, IEEE International Conference on IP Multimedia Subsystem Architecture and Application (IMSAA-2007), Accepted for presentation, Bangalore, India, December 6-8, 2007.
     
  • M. Vimaladevi, Debabrata Das, and B. A. Shah, “Design of WiMAX Node Architecture for End-to-End Quality of Service”, Accepted for Presentation, IEEE WPMC, December, 2007.
     
  • Ritesh K. Kalle, Debabrata Das, and A. Lele, “Performance of Triple Play over 802.16e Based Networks for Rural Environment”, IEEE Asia-Pacific Conference on Communication (APCC – 2007), October 18-20, Bangkok, Thailand.
     
  • Abhijit Lele, Mayank Raj, and Debabrata Das, “Providing Voice Connectivity to Rural India Using WiMax: Issues and Solution”, SIGCOMM 2007 (in section of NSDR – Networked Systems for Developing Region), August 27-31, 2007, Koyoto, Japan.
     
  • Omanand Jha Vatsa, Mayank Raj, Ritesh Kumar K, Deepak Panigrahy and Debabrata Das, “Adaptive Power Saving Algorithm for Mobile Subscriber Station in 802.16e “, IEEE International conference on COMmunication System softWAre and middlewaRE (COMSWARE 2007), Jan. 9-12, 2007, Bangalore.
     
  • A. V. Dhananjay and D. Das, “Performance of Sniff & Embark protocol for Real Time Traffic in Wireless-LAN“, International Conference on Information Technology (ICIT-2006), Dec. 19-21, 2006, Bhubaneswar, India.
     
  • S. Karthik, M. Jaiswal, V. Menon, Vidhya K., Shobha V., A. Talukder and D. Das , “Seamless Network Management In Presence of Heterogeneous Management Protocols for Next Generation Network”, International Conference on Information Technology 2006 (ICIT 2006), Bhubaneswar, 18-21st Dec., 2006.
     
  • A. V. Dhananjay and D. Das, “Sniff and Embark Protocol for QoS Enhancement in Wireless LAN”, IEEE International Conference on Computer Communication and Networks (ICCCN 2006), Arlington, Varginia, Washington D C Area, USA, Oct 9-11, 2006.
     
  • V. Siddhartha, SVS. Naresh, P. Srinivas, D. Das, “New-MAC Protocol for Enhancement of QoS Performance in Wireless LAN”, IEEE International Conference on Wireless and Optical Communication Network (WOCN 2006), April 11-13, Bangalore, 2006.
     
  • R. Mukul, P. Singh, D. Jayaram, D. Das, N. Sreenivasulu, K. Vinay, and A. Ramamoorthy, “An Adaptive Bandwidth Request Mechanism for QoS Enhancement in WiMax Real Time Communication”, IEEE International Conference on Wireless and Optical Communication Network (WOCN 2006), April 11-13, Bangalore, 2006.
     
  • K. Vinay, N. Sreenivasulu, D. Jayaram, D. Das, “Performance Evaluation of End-to-End Delay by Hybrid Scheduling Algorithm for QoS in IEEE 802.16 Network”, IEEE International Conference on Wireless and Optical Communication Network (WOCN 2006), April 11-13, Bangalore, 2006.
     
  • S. Mitra, A. Sharma, A. Talukder, D. Das and M. Pande,“Improving Presence and Reducing Missed Call in VoIP Networks Through Mobile Paging”, International Conference on Computer and Information Science (ICCIS 2005).
     
  • A. K. Talukder, D. Das, et.al., ``Toll Collection through affordable SMS”,  International Conference on Communications and Computing 2005 (ICCC2005), IIT-Kanpur, India, February 4-6, 2005.
     
  • A. K. Talukder, S. Shabra, T. S. Sudarsan, K. A. Gowrishankar, and D. Das, `` Ubiquitous Rescue Operation at Affordable Cost through Location-Aware SMS”,National Conference on Communication’2005 (NCC2005), IIT Kharagpur, India, pp. 651-655,  January 28-30, 2005.
     
  • S. Pasupuleti, S. Shreevathsa, and D. Das, “End-to-end Performance Analysis and Simulation of QoS Aware Wireless LANs Interconnected by WDM-Optical Backbone”,IEEE International Conference on Personal Wireless Communication 2005 (ICPWC 2005), New Delhi, pp. 295-299, January 23-25, 2005.
     
  • A. Talukder, D. Das, and B. Singh, “Ubiquitous-Trustworthy-Secure Data Communication in Hybrid Cellular-Internet Networks’’, IEEE INDICON 2004, I I T Kharagpur, India, Dec. 20-22, 2004.
     
  • S. Pasupuleti and D. Das, “Throughput and Delay Evaluation of Proposed-DCF MAC Protocol for WLAN”, IEEE INDICON 2004, I I T Kharagpur, India, Dec. 20-22, 2004.
     
  • J. Venkatraman, V. Raghavan, D. Das and A. Talukder, ”Trust and Security Realization for Mobile Users in GSM Cellular Networks”, Published in Lecture Notes in Computer Science (LNCS 3285) of Springer, International Conference on Information Technology - Asian Applied Computing Conference 2004 (AACC2004), Kathmandu, Nepal, pp 302-309, October 29-31, 2004.
     
  • S. Pasupuleti and D. Das, “Performance Evaluation of A New-DCF Mechanism for IEEE802.11”, International Conference on Computer Communication 2004 (ICCC 2004), Beijing, China, Vol. II, pp 1412-1418, September 15-17, 2004.
     
  • S. Naudiyal, S. Garg, A. Talukder, and D. Das, “Implementation of Multicasting over an Access Network by Next Generation Internet Protocol”, NCC2004, Bangalore, pp. 504-507, January 31, 2004.
     
  • V. Dosi, K. Singh, S. Naudiyal, A. Singhal, D. Das, and A. Talukder, “Internet Protocol: Prospects and Challenges for 21st Century”, International Conference on Information Technology: Prospects and challenges in 21st century, Kathmandu, Nepal, Vol.II, pp 73-81, May 23-26, 2003.
     
  • D. Das, S. Batabyal, and D. Datta,”Physical-layer Design Issues in Two-Level Hierarchical WDM-LANs”, First Online Symposium for Electronics Engineers (OSEE),www.techonline.com/osee/, Waltham, Massachusetts 02451, USA, January 9, 2001.
     
  • D. Das, S. Batabyal, and D. Datta, “ Power-budget Analysis for a Two-Level WDM-LANs”, International Conference on Fiber Optics and Photonics (PHOTONICS’2000),Technical Digest, Calcutta, India, pp 409-412, December 17-20 2000.
     
  • D. Das and D. Datta, “Performance Evaluation for Single-wavelength and WDM Optical Backbones”, International Conference on Communications, Computers and Devices (ICCCD’2000), IIT Kharagpur, India, December 14-16, 2000.
     
  • D. Das, G. Dutta, and D. Datta, “Power Budget for Multiple Access WDM Networks with Subcarrier Multiplexed Control Packets”, National Conference on Communications’2000 (NCC2000), IIT Delhi, India, pp. 91-94, Jan. 29-30, 2000.
     
  • D. Das, S. S. Saini, and D. Datta, “Throughput Analysis of a LAN Employing Linked-cluster Topology with an Optical Backbone”, National Conference onCommunication’1999 (NCC1999), IIT Kharagpur, India, pp. 506-510, January 29-31, 1999.

Teaching

New Courses Developed and Taught:

  • Wireless Access Network (Course Code: IT-725)
     
  • IP Multimedia Subsystem and Pervasive Computing (IT-731; with Dr. M. Pande)
     
  • Research Elective (IT-699)
     
  • Multimedia Networking and Network Management (IT-625; with Dr. A. Lele)
     
  • Advanced Computer Networking (IT-602)
     
  • Fundamentals of Telecom Infrastructure (IT-542)
     
  • Mobile Computing with IMS (NC- 210), with Dr. M. Pande 

Existing Courses Taught

  • Computer Networking and Communication (IT-509; With Dr. J. Bapat)


Research & Consulting

Sponsored Research Projects

  1. Next Generation Scalable Wireless Infrastructure and Services for Successful Broadband Penetration in India
    Sponsored by: Intel.
    Principal Investigator: Dr. Debabrata Das, IIIT-B
    Year: 2010-2012
     
  2. Design and Study of Next Generation Green Broadband Wireless
    Sponsored by: Department of Information Technology, Government of India.
    Principal Investigator: Dr. Debabrata Das, IIIT-B
    Co-Investigator: Dr. Jyotsna Bapat, Dr. Madan Pande
    Year: 2007-2008
     
  3. Rich IP Multimedia Services over IMS/IP using SIP/XMPP
    Sponsored by: Nokia.
    Principal Investigator: Dr. Debabrata Das, IIIT-B
    Co-Investigator: Dr. M. Pande
    Year: 2008-2010
     
  4. Studies on Wireless Access Network for Emerging Market
    Sponsored by: Motorola India Research Lab.
    Principal Investigator: Dr. Debabrata Das, IIIT-B
    Co-Investigator:  A. Lele and Mr. R. Ramakrishnan from Motorola India Research Lab
    Year: 2007-2008
     
  5. IP Multimedia Subsystem based network sizing, service orchestration, and multimedia streaming
    Sponsored by: Hewlett Packard.
    Principal Investigator: Dr. Debabrata Das, IIIT-B
    Co-Investigator: Dr. Vincent Planat from HP
    Year: 2005-2007
     
  6. Implementation of Vehicle Tracking and Control System by Telemetric Technology for Buses at Koyembadu Bus Stop (one of Asia's biggest bus terminus), Chennai.
    Sponsored by: Government of India.
    Co-Investigator: Dr. Debabrata Das, IIIT-B
    Year: 2005-2007
    Consortium is formed at IIIT-B under the leadership of Prof. S. Sadagopan to implement and bring out standard solution for Bus tracking and control in India.
     
  7. Fast routing algorithm implementation by use of Intel Network Processor
    Sponsored by: Intel.
    Principal Investigator: Dr. Debabrata Das, IIIT-B
    Year: 2004-2005
     
  8. Ethernet evaluation and packet routing by Intel network processor
    Sponsored by: Intel.
    Principal Investigator: Dr. Debabrata Das, IIITB
    Year: 2003-2004


other Information

Invited Technical Talks (at MNCs Research Labs, Conferences and Workshops)

Year 2010:

  • Invited Talk on, “Broadband in India and 3G/4G Broadband Wireless Access effect on Internet”, National Internet Exchange India (NIXI) workshop for NIXI Fellows, 28th Nov. 2010, Bangalore.
     
  • Invite Keynote on, “Wireless Broadband Networks Present and Future”, International Conference on Demand Computing (ICODC’10)”, Bangalore, 4th Nov. 2010. 
     
  • Invited Technical Talk on “Mobile Computing: Security and Privacy”, at UGC Sponsored Seminar on Mobile Computing Trends and Future Challenges, 2nd September, 2010, Mount Carmel College, Bangalore.
     
  • Invited Technical Talk on “Green Broadband Wireless Communication”, at International Conference on Convergence of Science and Engineering (ICSE-2010), April 21-23, 2010, Bangalore.

Year 2009:

  • Invited Speaker, Central Research Laboratory (CRL), Bharat Electronics Limited (BEL), on “Concept of MAC Protocols: Wireless LAN MAC”, 5th Nov. 2009.
     
  • Invited Speaker, National Engineering Conference, on “Wireless Body Area Network: Medium Access Control Protocols”, at Dayananda Sagar Institutions, Bangalore, March 20th, 2009.
     
  • Invited Speaker, Title of Talk: Wireless Body Area Network: Present and Futuristic”, at LG Software India, Bangalore, Feb. 19th, 2009.
     
  • Invited Speaker on “The Future of Rich Media in Enterprise Communication”, in Rich Multimedia Communication (RiMCET) workshop at IEEE International Conference on COMmunication Systems and NETworkS (COMSNETS 09), 5th Jan, 2009, Bangalore.

Year 2008

  • Chief Guest Address, Topic: “Possible Major Challenges for Quality Assurance in Upcoming Next Generation Telecom Networks”, at a function organized by Bharat Sanchar Nigam Limited (BSNL), A Government of India
     
  • Enterprise, at Sanchar Complex, 5th Block, Jayanagar, Bangalore, 24th Oct. 2008
     
  • Chief Guest Address, Topic: “ Next Generation Networks: Backbone Architecture“, IEEE and ISRO sponsored National Level Students Seminar and Project Competition, Dayanand Sagar College of Engineering, Bangalore, 15th October, 2008.
     
  • Key Note Address, Topic: “Convergence: A Novel Architecture for High Speed Transit Through Wireless Access Network”, International Conference on Information Processing (ICIP-08), Bangalore, 9th August, 2008.

Year 2007

  • Topic: "Concepts of Evolution for Medium Access Control (MAC) Protocol for Wireless-LAN to support Multimedia Till Date and Furute", L & T Infotech, 20th September 2007.
     
  • Topic: "Wireless LAN MAC to support Multimedia", National Workshop on Wireless Communication J N Tata Auditorium, IISc, Bangalore, 17th August 2007.
     
  • Topic: "Next Generation Telecom Network: IP Multimedia Subsystem." Keynote address at National Workshop/Conference on Next Generation Network, BNMIT Engineering College, Bangalore, on 20 April 2007.
     
  • Topic: What will be broadband metropolitan wireless access network: WiMax? Dept. of Electronic Science, Bangalore University, Jnana Bharati Campus, on Celebration of "Swarna Karnataka" lecture series, 13 April, 2007.

Year 2006

  • Motorola Research Lab: Topic: Proposed MAC and QoS in Wireless-LAN, Audience: Director and Scientific staff of Motorola Research Lab., Nov. 21, 2006.
     
  • Topic: Concepts of WiFi and WiMax MAC", Orissa Computer Application Centre, Dept. of Information Technology, Dec 22, 2006, Bhubaneswar.
     
  • Topic: "QoS issues in medium access control of Wireless-LAN", International Conference on Information Technology (ICIT-2006) on , Dec. 20, 2006, Bhubaneswar.
     
  • Topic: "Futuristic Research and Implementation on Wireless Technology." Key Note Address in Wireless Network Workshop, B V B Engineering College, Hubli, Karnataka, India, April 1, 2006.

Year 2005

  • Intel: Topic: "Concepts of Computer Networking." Audience: Engineers of Intel Company; Subjects Covered: Network Design Aspects, Routing Algorithms, Switching; Duration: August 1st to 3rd, 2005.
     
  • Topic: Projects on Networking, at a workshop, "A frame work for students projects", to Computer Science Departments' faculty members of Viswesaraya Technical University of Karnataka, organized by Sapthagiri College of Engineering, Bangalore, on 24 Aug. 2005.
     
  • Topic: "Recent trends in communication." Keynote address (as Chief Guest) at the inaugural function of National Conference in Recent Trends in Communication Engineering (NCRTC-2005), at Technology Information, Forecasting and Assessment Council - Centers of Relevance Excellence (TIFAC-CORE's) of Govt. of India sponsored Network Engineering Center, at Arilmigu Kalasingam College of Engineering, Krishnankoil, Tamil Nadu, India, May 12th, 2005.
     
  • Topic: "Innovation in MAC for random access in case of LANs and WLANs", at Technology Information, Forecasting and Assessment Council - Centers of Relevance Excellence (TIFAC-CORE's) of Govt. of India sponsored Network Engineering Center, at Arilmigu Kalasingam College of Engineering, Krishnankoil, Tamil Nadu, for National Conference in Recent Trends in Communication Engineering (NCRTC-2005), May 12th, 2005.
     
  • Topic: "End-to-end performance evaluation of a network where WLANs are interconnected by optical backbone", at National Workshop on Advanced Communication Technology, at BNMIT, Bangalore, on 23rd April 2005.
     
  • Topic: "Wireless LANs MAC protocols challenges for QoS", presentation at the Centre for Telecom Research workshop at IIIT Bangalore, on "Wireless Communication in Telecom - Next Trends", 23rd February, 2005.

Year 2004

  • Topic: "Wireless LAN MAC", at MSR Institute of Technology for AICTE on , for faculties of different engineering colleges, on 10th August 2004.
     
  • Topic: "Evolution of cellular communication from 1st to 4th Generation." 10th April 2004, at J N Tata Auditorium, IISc
     
  • Topic: "Virtual Connectivity and ATM", for final year engineering students, IIIT Hubli 2003-2004.
     
  • Topic: "Convergent Networks", Workshop, Hubli Engineering College 2003-04.
     
  • Topic: "VoIP Trends in networking", Dharwad Engineering College,2003-04.