Secrecy Performance for Underlay Cooperative Cognitive Radio Network with EH and TAS Using MIMO over Nakagami-m Fading Channels

EasyChair Preprint 5125

Abstract

This paper introduces underlay Multiple Input Multiple Output (MIMO) cooperative communication involving source, destination, eavesdropper, primary nodes and Decode and Forward (DF) relay, where the source and relay are powered by harvested energy from the primary transmitter to improve both energy efficiency and spectral efficiency. Here, the power of secondary nodes is strictly constrained by interference power and maximum transmit power. In particular, the unlicensed transmitter will forward the message of the unlicensed sender to the unlicensed recipient by using an intermediate relay. Here, the direct path is considered to be unreliable. Moreover, the secrecy outage performance will be studied over Nakagami-m fading channel, closed-form secrecy outage performance for secondary relay is derived with an active eavesdropper, where all the Channel State Information (CSI) is assumed to be available at source and relay. Here, Transmit Antenna Selection/Maximal Ratio Combining (TAS/MRC) is implemented at the secondary relay. Also, Maximal Ratio Combining (MRC) technique will utilize at both the destination and the eavesdropper to enhance the security performance. The secrecy performance for the secondary relay and the closed-form expression is derived for multiple antenna cooperative cognitive radios. The mathematical results indicate that when the number of antenna at the relay and/or destination increases, the secrecy outage performance of the system can be enhanced.

Keyphrases: Maximal Ratio Combining, Transmit Antenna Selection scheme, cooperative communication, energy harvesting

@booklet{EasyChair:5125,
  author    = {Saja Mohd Alquran and Mahmoud A. Khodeir},
  title     = {Secrecy Performance for Underlay Cooperative Cognitive Radio Network with EH and TAS Using MIMO over Nakagami-m Fading Channels},
  howpublished = {EasyChair Preprint 5125},
  year      = {EasyChair, 2021}}