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  • Dr. Vivek Dwivedi
Associate Professor
Vivek.dwivedi@jiit.ac.in

Education

BE.,M.E., PhD

Interest Area(s)

Cognitive radio, Fading , Channel Capacity

Work Experience
11 Years

Publications

International Journals

SCI, Journal

  • A. Upadhya, J. Gupta, VivekK. Dwivedi and M. -S. Alouini, "Impact of RF I/Q Imbalance on Interference-Limited Mixed RF/FSO TWR Systems with Non-Zero Boresight Error,"IEEE Wireless Communications Letters, doi: 10.1109/LWC.2020.3033528.(Impact Factor 3.546)
  • Dipti R. Pattanayak, Vivek K. Dwivedi and  Vikram Karwal, “On the Physical Layer Security of Hybrid RF-FSO System in Presence of Multiple Eavesdroppers and Receiver Diversity”Optics Communications, Elsevier, Vol.477, pp.126334, Dec. 2020 (Impact Factor 2.15).
  • Amit Goel, Abhijeet UpadhyaandVivek K. Dwivedi “Diversity Aided Millimeter-Wave/Free Space Optical Cooperative Relaying Systems” International Journal of Communication Systems, Wiley, (Accepted for Publication) (Impact Factor 1.278)
  • D. R. Pattanayak, Vivek K. Dwivedi,V. Karwal, I. S. Ansari, H. Lei and M. -S Alouini, "On the Physical Layer Security of a Decode and Forward Based Mixed FSO/RF Co-operative System," in IEEE Wireless Communications Letters DOI: 10.1109/LWC.2020.2979442(Impact Factor 3.546)
  • A. Upadhya, Vivek K. Dwivedi,and G. K. Karagiannidis, "On the Effect of Interference and Misalignment Error in Mixed RF/FSO Systems Over Generalized Fading Channels," IEEE Transactions on Communications, vol. 68, no. 6, pp. 3681-3695, June 2020, doi: 10.1109/TCOMM.2020.2971496.. (Impact Factor 5.69)
  • Pattanayak, Dipti R., Vivek K. Dwivedi, and Vikram Karwal. "Physical layer security of a two way relay based mixed FSO/RF network in the presence of multiple eavesdroppers."Optics Communications, Elsevier, Vol 463, pp. 125429, May 2020. https://doi.org/10.1016/j.optcom.2020.125429(Impact Factor 2.15)
  • Tonk, Vijay Kumar, Abhijeet Upadhya, Pradeep Kumar Yadav, and Vivek K. Dwivedi."Mixed MUD-RF/FSO Two Way Dcode and Forward Relaying Networks in the Presence of Co-Channel Interference."Optics Communications, Elsevier, vol.  464, pp. 125415., June 2020. https://doi.org/10.1016/j.optcom.2020.125415(Impact Factor 2.15)
  • A. Upadhya, Vivek K. Dwivedi and M. -S. Alouini, "Interference-Limited Mixed MUD-RF/FSO Two-Way Cooperative Networks Over Double Generalized Gamma Turbulence Channels," IEEE Communications Letters, vol. 23, no. 9, pp. 1551-1555, Sept. 2019(Impact Factor 3.457)
  • Abhijeet Upadhya, Vivek K. Dwivedi,and G. Singh. "Multiuser diversity for mixed RF/FSO cooperative relaying in the presence of interference." Optics Communications, Elsevier,  vol. 442 , pp. 77-83,  Jul. 2019. (Impact Factor 2.15)
  • Yadav, P.K., , Vivek K. Dwivedi, Maharaj, B.T. and Jai P. Gupta “Performance Enhancement of 5G OFDM Systems Using Modified Raised Cosine Power Pulse” Wireless Personal Communication (2019). https://doi.org/10.1007/s11277-019-06322-0. (Impact Factor 0.929)
  • Upadhya, Abhijeet, Vivek K. Dwivedi, and G. Singh. "Relay-aided free-space optical communications using α− μ distribution over atmospheric turbulence channels with misalignment errors." Optics Communications, Elsevier, vol 416 pp. 117-124, June, 2018. (Impact Factor 2.15)
  • J. Gupta, Vivek K. Dwivedi and V. Karwal, "On the Performance of RF-FSO System Over Rayleigh and Kappa-Mu/Inverse Gaussian Fading Environment, "IEEE Access, vol.6, pp.4186-4198, 2018. (Impact Factor  4.098)
  • J. Gupta, Vivek K. Dwivedi, V. Karwal, I.S. Ansari and G. K. Karagiannidis, "Free space optical communications with distributed switch-and-stay combining, "IET Communications, vol.12, no.6, pp.727-735, 2018. (Impact Factor 1.779)
  • Pattanayak, Dipti R., Sudhakar Rai, Vivek K. Dwivedi, and G. Singh. "A statistical channel model for a decode-and-forward based dual hop mixed RF/FSO relay network."Optical and Quantum Electronics 50, no.6 (2018): 229. (Impact Factor 1.547 )
  • Upadhya, Abhijeet, Vivek K. Dwivedi, and G. Singh. "Relay – aided free-space optical communications using α−μ distribution over atmospheric turbulence channels with misalignment errors."Optics Communications, Elsevier, 416(2018): 117-124. (Impact Factor 2.15)
  • Garima Singh, Gurjeet Kaur,Vivek K. Dwivedi and Pankaj K.Yadav, “Development of coded – cooperation based multi-relay system for cognitive radio using mathematical modeling and its performance analysis’’,WirelessNetwork,SpringerDOI10.1007/s11276-017-1453-x.(Impact Factor 2.405 )
  • Juhi Gupta,V. Karwaland Vivek K Dwivedi, “Joint overlay- under lay optimal power allocation in cognitive radio”, Wireless Personal Communication, Vol.83, no.3, pp 2267–2278, Aug. 2015.(Impact Factor 0.929)
  • Vivek K Dwivedi and G Singh, “Moment Generating Function Based Performance Analysis of Maximal-Ratio Combining Diversity Receiver sin the Generalized-K Fading Channels”, Wireless personal communication, Springer, vol.77, Issue 3, pp.1959-1975, Aug. 2014. (Impact Factor 0.929)
  • Vivek K. Dwivedi and G Singh, “Marginal moment generating function based analysis of channel capacity over correlated Nakagami-m fading with maximal-ratio combining diversity”, Progress In Electromagnetic Research B, vol.41, pp. 333-356, June 2012.
  • Vivek K. Dwivedi and G Singh, “Repeated correlative coding scheme for mitigation of ICI in OFDM systems,” IET Communication, vol. 6, pp. 599-603, April 2012 .[Impact factor:1.061]  (Impact Factor 1.779)
  • Vivek K. Dwivedi and G Singh, “A novel moment generating function based performance analysis over correlated Nakagami-m fading”, Journal of Computational Electronics, vol.10, no.4, pp.373-381, Dec. 2011. (Impact Factor 1.62)
  • Vivek K. Dwivedi and G Singh, “Error-rate analysis of OFDM communication system in correlated Nakagami-m fading channel using maxima ratio combining diversity”, Int. Journal of Microwaveand Wireless Technologies, vol.3, no.6, pp.717-726, Dec. 2011.(Impact Factor 0.703)
  • Vivek K. Dwivedi and G Singh, “A Novel MGF- based performance analysis of maximal ratio combining diversity receiver sin the generalized- K fading channels”, Progress In Electromagnetic Research C,vol.26,pp. 153-165,Dec.2011.(Impact Factor .59)
  • Vivek K. Dwivedi and G Singh, “A novel bit error rate analysis and improved ICI reduction method in OFDM communication systems”, Journal of Infrared, Millimeter, and Terahertz Waves, vol. 30, no.11, pp.1170 - 1180, 2009.(Impact Factor 1.762)

International Conferences:

  • Vivek K Dwivedi and G Singh, “Analysis of channel capacity of generalized-K fading with maximal ratio combining diversity receivers,” Proc. International Conference on Communication System and Networking technology (CSNT-2011), 3-5 June 2011, pp. 550-553, India.
  • Kamboj,A.,Dwivedi, V.K.,and Singh, G, “Bandwidth efficient inter-carrier interference cancellation technique for OFDM digital communication systems”, Progress In Electromagnetic Research Symposium (PIERS2009),Moscow, Russia,pp.1244-48, Aug,2009. [Indexed in Web of Science]
  • Dwivedi, V.K., Gupta, A., Kumar, R.and Singh, G, “Performance analysis of coded OFDM system using various coding schemes”,Progress In Electromagnetic Research Symposium( PIERS 2009) pp.1249-1252 Moscow, Russia, Aug.,2009. [Indexed in Web of Science]
  • Sharma, A.,Dwivedi, V.K.,and Singh, G, “THz rectangular microstrip antenna on multilayered substrate for advanced wireless communication systems”,Progress In Electromagnetic Research Symposium(PIERS 2009), Beijing, CHINA, pp. 627-631 March 2009. [Indexed in Web of Science]
  • Dwivedi, V.K., Kumar, P.,and Singh, G., “Performance analysis of OFDM communication over correlated nakagami fading channel”,Progress In Electromagnetic Research Symposium (PIERS 2009), China, pp. 1495-1498, March 2009. [Indexed in Web of Science]
  • Kumar, P., Dwivedi, V.K., Singh, G.,and Bhooshan, S., “Input impedance of gap-coupled circular microstrip with shorting post”,Progress in Electromagnetics Research Symposium (PIERS 2009), China. pp. 1634-1638, 23-27 March 2009. [Indexed in Web of Science]
  • Dwivedi, V.K.,andSingh, G., “Improved BER analysis of OFDM communication system on correlated nakagami fading channel”,International Conference on Recent Advances in Microwave Theory and Applications, India, pp.536-539, Nov. 2008. [Indexed in SCOPUS]
  • Dwivedi, V.K.,Kumar P., andSingh, G., “A novel blind frequency offset estimation method for OFDM systems”,International Conference on Recent Advances in Microwave Theory and Applications, India, pp.668-675 Nov., 2008. [Indexed in SCOPUS]
  • Kumar, P., Dwivedi, V.K., Singh, G., andBhooshan, S., “Miniaturization of gap-coupled circular microstrip antennas”,2008 International Conference of Recent Advances in Microwave Theory and Applications, MICROWAVE 2008, art. no. 4762984, pp. 489-491, 2008. [Indexed in SCOPUS]
  • Dwivedi, V.K.,andSingh, G., “An efficient BER analysis of OFDM systems with ICI conjugate cancellation method”,Progress In Electromagnetic Research Symposium, Cambridge USA., pp. 166-171, July 2008. [Indexed in Web of Science]
  • Sharma, A., Dwivedi, V. K., andSingh, G., “THz rectangular patch microstrip antenna design using photonic crystal as substrate”,Progress In Electromagnetics Research Symposium (PIERS 2008), Cambridge USA, pp. 161-166, July 2008. [Indexed in Web of Science]
  • Dwivedi, V.K.,andSingh, G., “A LMMSE approach for frequency offset estimation in OFDM system”,Proceedings of International Conference on Intelligent Systems and Networks (ISN-2008), Klawad, India, pp. 264-266, Feb.2008.
  • Dwivedi, V.K., Kumar S. andSharma, A.K., “A novel frequency offset estimation technique baysian approach”, Wireless Personal Mobile Communication (WPMC 2006) ,San Diego, CA, USA pp.388-391, Sept. 2006. [Indexed in Web of Science]

National Conferences:

  • Dwivedi, V.K.,andSingh, G., “Inter-carrier interference cancellation in OFDM systems”,Proc. Conference on Wireless and Optical Communication (WOC- 2007), Chandigarh, pp. 245-248, Dec. 2007.

Editorial board:  

  • IEEE ACCESS
  • Human-centric Computing and Information Sciences