P. Appalla and P. Das, "Optimal Relay and Antenna Selection in MIMO Spectrum Sharing Relay Networks Under Different CSI and Interference Constraints," in IEEE Open Journal of the Communications Society, vol. 6, pp. 8965-9007, 2025.
A. Agarwal, A. Mishra, A. Ray and P. Das, "Sparse Channel Estimation in IRS-Assisted Massive MIMO Cognitive Radio Systems," in IEEE Transactions on Communications, vol. 73, no. 1, pp. 200-215, Jan. 2025.
P. Das and N. B. Mehta, ``Rate-optimal relay selection for average interference-constrained underlay CR,’’ IEEE Trans. Commun., vol. 65, no. 12, pp. 5137-5148, Dec. 2017.
P. Das, N. B. Mehta, and G. Singh, ``Novel relay selection rules for average interference-constrained cognitive AF relay networks,’’ IEEE Trans. Wireless Commun., vol. 14, no. 8, pp. 4304-4315, Aug. 2015.
P. Das and N. B. Mehta, ``Direct link-aware optimal relay selection and a low feedback variant for underlay CR,’’ IEEE Trans. Commun., vol. 63, no. 6, pp. 2044-2055, Jun. 2015.
P. Das, K. Karthik, and B. C. Garai, ``A robust alignment-free fingerprint hashing algorithm based on minimum distance graphs,’’ Elsevier J. Pattern Recognition, vol. 45, no. 9, pp. 3373-3388, Sep. 2012.
B. C. Garai, P. Das, and A. K. Mishra, ``Group delay reduction in FIR digital filters,’’ Elsevier J. Signal Process., vol. 91, no. 8, pp. 1812-1825, Aug. 2011.
