Dr. P. K. Upadhyay

[J41]  S. Solanki, V. Singh, and P. K. Upadhyay, "RF Energy Harvesting in Hybrid Two-Way Relaying Systems with Hardware Impairments," IEEE Transaction on Vehicular Technology, accepted for publication.  

[J40] X. Wu, M. Lin, H. Kong, Q. Huang, J. Y. Wang, P. K. Upadhyay, “Outage Performance for Multiuser Threshold-based DF Satellite Relaying,” IEEE Access, vol. 7,  no. 1, pp 103142-103152, Dec. 2019.

[J39] V. Bankey and P. K. Upadhyay, “Physical Layer Security of Hybrid Satellite-Terrestrial Relay Networks with Multiple Colluding Eavesdroppers over Non-identically Distributed Nakagami-m Fading Channels,” IET Communications, vol. 13, no. 14, pp. 2115-2123, Aug. 2019.

[J38] D. B. da Costa, G. K. Karagiannidis, O. A. Dobre, P. K. Upadhyay, M. Xia, H. Ding, and R. Schober, “Introduction to the Special Section on Energy-Harvesting Cognitive Radio Networks,” IEEE Transactions on Cognitive Communications and Networking, vol. 5, no. 2, pp. 342-346, June 2019.

[J37] P. S. Bithas, A. G. Kanatas, D. B. da Costa, P. K. Upadhyay, and A. Hatziefremidis, "Novel Results for the Multivariate Ricean Distribution with Non-identical Parameters," IEEE Transactions on Vehicular Technology, vol. 68, no. 5, pp. 5129-5133, May 2019.

[J36] V. Bankey and P. K. Upadhyay, "Physical Layer Security of Multiuser Multirelay Hybrid Satellite-Terrestrial Relay Networks," IEEE Transactions on Vehicular Technology, vol. 68, no. 3, pp. 2488-2501, Mar. 2019.

[C35] V. Singh, S. Solanki, P. K. Upadhyay, D. B. da Costa, and J. M. Moualeu, "Impact of Hardware Impairments on Cognitive Satellite-Terrestrial Relaying with a Direct Link," IEEE Consumer Communications & Networking Conference (CCNC), Las Vegas, USA, 10-13 Jan. 2020.

[C34] V. Bankey and P. K. Upadhyay, “Average Symbol Error Probability of Interference-Limited Multiuser Hybrid Satellite-Terrestrial Relay Networks with Outdated Channel State Information,” IEEE Region 10 International Conference (TENCON), Kochi, Kerala, India, Oct. 2019. 

[C33] S. Solanki, P. K. Upadhyay, D. B. da Costa, H. Ding, and J. M. Moualeu, "Non-linear Energy Harvesting Based Cooperative Spectrum Sharing Networks," Int. Symp. on Wireless Commun. Syst. (ISWCS), Oulu, Finland, Aug. 2019. (Invited Paper)

[C32] V. Bankey and P. K. Upadhyay, "Ergodic Secrecy Capacity Analysis of Multiuser Hybrid Satellite-Terrestrial Relay Networks with Multiple Eavesdropper," IEEE International Conference on Communications Workshops (ICC Workshops): Wireless Physical Layer Security, May 2019.

[J35] S. Solanki, P. K. Sharma, and  P. K. Upadhyay, "Adaptive Link Utilization in Two-Way Spectrum Sharing Relay Systems Under Average Interference-Constraints," IEEE Systems Journal, vol. 12, no. 4, pp. 3461-3472, Dec. 2018. 

[J34] D. S. Gurjar and P. K. Upadhyay, "Overlay Device-to-Device Communications in Asymmetric Two-Way Cellular Systems with Hybrid Relaying," IEEE Systems Journal, vol. 12, no. 4, pp. 3713-3724, Dec. 2018.

[J33] S. K. Tiwari, T. R. T. Reddy, P. K. Upadhyay, and D. B. da Costa,"Joint Optimization of Molecular Resource Allocation and Relay Positioning in Diffusive Nanonetworks," IEEE Access (Special Section on Molecular Communication Networks), vol. 6, pp. 67681-67687, Dec. 2018.

[J32] V. Singh, S. Solanki, and P. K. Upadhyay, "Cognitive Relaying Cooperation in Satellite-Terrestrial Systems With Multiuser Diversity," IEEE Access, vol. 6, pp. 65539-65547, Dec. 2018.

[J31] S. Solanki, P. K. Upadhyay, D. B. da Costa, P. S. Bithas, A. G. Kanatas, and U. S. Dias, "Joint Impact of RF Hardware Impairments and Channel Estimation Errors in Spectrum Sharing Multiple-Relay Networks," IEEE Transactions on Communications, vol. 66, no. 9, pp. 3809-3824, Sept. 2018. 

[J30] S. Solanki, P. K. Upadhyay, D. B. da Costa, P. S. Bithas, and A. G. Kanatas, "Performance Analysis of  Cognitive Relay Networks with RF Hardware Impairments and CEEs in the Presence of Primary Users' Interference," IEEE Transactions on Cognitive Communications and Networking, vol. 4, no. 2, pp. 406-421, Jun. 2018.

[J29] V. Bankey and P. K. Upadhyay, "Physical Layer Secrecy Performance Analysis of Multi-User Hybrid Satellite-Terrestrial Relay Networks," CSI Transactions on ICT, vol. 6, no. 2, pp. 187-193, Jun. 2018.

[J28] V. Bankey and P. K. Upadhyay, "Ergodic Capacity of Multiuser Hybrid Satellite-Terrestrial Fixed Gain AF Relay Networks with CCI and Outdated CSI," IEEE Transactions on Vehicular Technology, vol. 67, no. 5, pp. 4666-4671, May 2018.

[J27] V. Bankey, P. K. Upadhyay, D. B. da Costa, P. S. Bithas, A. G. Kanatas, and U. S. Dias, "Performance Analysis of Multi-Antenna Multiuser Hybrid Satellite-Terrestrial Relay Systems for Mobile Services Delivery," IEEE Access, vol. 6, pp. 24729-24745, Apr. 2018.

[J26] P. S. Bithas, A. G. Kanatas, D. B. da Costa, P. K. Upadhyay, and U. S. Dias, “On the Double-Generalized Gamma Statistics and Their Application to the Performance Analysis of V2V Communications,” IEEE Transactions on Communications, vol. 66, no. 1, pp. 448-460, Jan. 2018.

[C30] V. Singh and P. K. Upadhyay "Cognitive Hybrid Satellite-Terrestrial Relay Networks with Simultaneous Energy and Information Transmission," IEEE International Conference on Advanced Networks and Telecommunication Systems (ANTS), Indore, India, 16-19 Dec. 2018. 

[C29] V. Singh, P. K. Upadhyay, D. B. da Costa, and U. S. Dias "Hybrid Satellite-Terrestrial Spectrum Sharing Systems with RF Energy Harvesting," IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communication (PIMRC), Bologna, Italy, 9-12 Sep. 2018.

[C28] S. K. Tiwari and P. K. Upadhyay, "Estimate-and-Forward Relaying in Molecular Communication Using Brownian Motion with Drift," International Conference on Signal Processing and Communication (SPCOM), IISc Bangalore, India, 16-19 Jul. 2018.

[C27] P. S. Bithas, A. G. Kanatas, D. B. da Costa, and P. K. Upadhyay, "A Low Complexity Communication Technique for Mobile-to-Mobile Communication Systems," 14th International Wireless Communications and Mobile Computing Conference (IWCMC), Limassol, Cyprus, 25-29 Jun. 2018.

[C26] U. Singh, S. Solanki, D. S. Gurjar, P. K. Upadhyay, and D. B. da Costa, "Wireless Power Transfer in Two-Way AF Relaying with Maximal-Ratio Combining under Nakagami-m Fading," 14th International Wireless Communications and Mobile Computing Conference (IWCMC), Limassol, Cyprus, 25-29 Jun. 2018.

[C25] D. S. Gurjar, U. Singh, and P. K. Upadhyay, "Energy Harvesting in Hybrid Two-Way Relaying with Direct Link under Nakagami-m fading," IEEE Wireless Communications and Networking Conference (WCNC), Barcelona, Spain, 15-18 Apr. 2018.

[C24] V. Bankey, P. K. Upadhyay, and D. B. da Costa, "Physical Layer Security of Interference-Limited Land Mobile Satellite Communication Systems," International Conference on Advanced Communication Technologies and Networking (CommNet), Marrakech, Morocco, 2-4 Apr. 2018. (Best Paper Award)

[J25] S. K. Tiwari, T. R. T. Reddy, and P. K. Upadhyay, “Error Performance Optimization using Logarithmic Barrier Function in Molecular Nanonetworks,” IEEE Communications Letters, vol. 21, no. 11, pp. 2408-2411, Nov. 2017.

[J24] Y. R. Ortega, P. K. Upadhyay, D. B. da Costa, P. S. Bithas, A. G. Kanatas, U. S. Dias, and R. T. de Sousa Junior, “Joint Effect of Jamming and Noise on the Secrecy Outage Performance of Wiretap Channels with Feedback Delay and Multiple Antennas,” Transactions on Emerging Telecommunications Technologies, vol. 28, no. 11, 10.1002/ett.3191, Nov. 2017.

[J23] P. K. Sharma, P. K. Upadhyay, D. B. da Costa, P. S. Bithas, and A. G. Kanatas, "Performance Analysis of Overlay Spectrum Sharing in Hybrid Satellite-Terrestrial Systems with Secondary Network Selection," IEEE Transactions on Wireless Communications, vol. 16, no. 10, pp. 6586-6601, Oct. 2017.

[J22] D. S. Gurjar, P. K. Upadhyay, D. B. da Costa, and R. T. de Sousa Jr., "Beamforming in Traffic-Aware Two-Way Relay Systems with Channel Estimation Error and Feedback Delay," IEEE Transactions on Vehicular Technology, vol. 66, no.10, pp. 8807-8820, Oct. 2017.

[J21] D. S. Gurjar and P. K. Upadhyay, "Overlay Spectrum Sharing for Device-to-Device Communications in Two-Way Cellular Networks with Nodes-Mobility," Transactions on Emerging Telecommunications Technologies, vol. 28, no. 10, 10.1002/ett.3164, Oct. 2017.

[J20] S. K. Tiwari and P. K. Upadhyay, "Estimate-and-Forward Relaying in Diffusion-Based Molecular Communication Networks: Performance Evaluation and Threshold Optimization," IEEE Transactions on Molecular, Biological, and Multiscale Communications, vol. 3, no. 3, pp. 183-193, Sept. 2017. (Most popular document with the best ranking of 2 in the month of April 2018)

[J19] A. K. Meshram, D. S. Gurjar, and P. K. Upadhyay, "Joint Impact of Nodes-Mobility and Channel Estimation Error on the Performance of Two-Way Relay Systems," Elsevier Physical Communications, vol. 27, pp. 103-113, Jun. 2017.

[J18] S. Solanki and P. K. Upadhyay, “Performance Analysis of Cognitive Relay Sharing Systems with Bidirectional Primary Transmissions Under Nakagami-m Fading,” IET Communications, vol. 11, no. 8, pp. 1199-1206, Jun. 2017.

[J17] P. K. Sharma and P. K. Upadhyay,  “Performance Analysis of Cooperative Spectrum Sharing with Multiuser Two-Way Relaying over Fading Channels,”  IEEE Transactions on Vehicular Technology, vol. 66, no. 2, pp. 1324-1333, Feb. 2017.

[C23] S. Solanki, P. K. Sharma, P. K. Upadhyay, D. B. da Costa, P. S. Bithas, and A. G. Kanatas, "Cognitive Multi-Relay Networks with RF Hardware Impairments and Channel Estimation Errors," IEEE Global Communication Conference (GLOBECOM), Singapore, Dec. 2017.

[C22] P. S. Bithas, A. G. Kanatas, D. B. da Costa, P. K. Upadhyay, and U. S. Dias, "The Double-Generalized Gamma Distribution and its Application to V2V Communications," IEEE Global Communication Conference (GLOBECOM), Singapore, Dec. 2017.

[C21] Y. R. Ortega, P. K. Upadhyay, D. B. da Costa, P. S. Bithas, A. G. Kanatas, U. S. Dias, and R. T. de Sousa Junior,  "Joint Effect of Jamming and Noise in Wiretap Channels with Multiple Antennas," 13th International Wireless Communications and Mobile Computing Conference (IWCMC), Valencia (Spain), 26-30 Jun. 2017.

[C20] S. Solanki and P. K. Upadhyay, “Secure Underlay Cognitive Relay Networks in Presence of Primary User’s Interference,” IEEE 85th Vehicular Technology Conference (VTC), Sydney, Australia, 4-7 Jun. 2017.

[C19] V. Bankey and P. K. Upadhyay, “Secrecy Outage Analysis of Hybrid Satellite-Terrestrial Relay Networks with Opportunistic Relaying Schemes,” IEEE 85th Vehicular Technology Conference (VTC), Sydney, Australia, 4-7 Jun. 2017.

[C18] P. K. Sharma, P. K. Upadhyay, D. B. da Costa, P. S. Bithas, and A. G. Kanatas, “Hybrid  Satellite-Terrestrial Spectrum Sharing System with Opportunistic Secondary Network Selection,” IEEE International Conference on Communications (ICC), Paris, France, 21-25 May 2017.

[C17] P. S. Bithas, A. G. Kanatas, D. B. da Costa, and P. K. Upadhyay, “Transmit Antenna Selection in Vehicle-to-Vehicle Time-Varying Fading Channels,” IEEE International Conference on Communications (ICC), Paris, France, 21-25 May 2017. 

[J10] S. Yadav and P. K. Upadhyay, “Impact of Outdated Channel Estimates on Opportunistic Two-Way ANC-Based Relaying with Three-Phase Transmissions,” IEEE Transactions on Vehicular  Technology, vol. 64, no. 12, 2015.