4.4 Article

Performance Analysis of Energy Efficient Spatial Modulation in Bidirectional Cooperative Cognitive Radio System with Eavesdropper

Journal

WIRELESS PERSONAL COMMUNICATIONS
Volume 125, Issue 1, Pages 101-118

Publisher

SPRINGER
DOI: 10.1007/s11277-022-09543-y

Keywords

Spatial modulation; Energy harvesting; Cognitive radio system; Secrecy outage probability

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This paper examines the secrecy outage probability and outage performance in a bidirectional cooperative cognitive radio system with the presence of an eavesdropper. The system employs spatial modulation technique to enhance spectral efficiency and energy efficiency. Simulation results demonstrate the proposed system's behavior and the impact of various system parameters.
This paper examines the Secrecy Outage Probability (SOP) and outage performance of an energy efficient Spatial Modulation (SM) in a bidirectional Decode and Forward (DF) Cooperative Cognitive Radio (CCR) system with the presence of an eavesdropper. In the proposed system, both primary and secondary users use SM technique to enhance the spectral efficiency and energy efficiency of the bidirectional system. The two primary users swap their information with the aid of a secondary user, which acts as a bidirectional DF relay node. Time Switching Relaying protocol-based energy harvester is employed in the secondary user to harvest the energy from both SM operated primary users. Secondary user information is embedded with jamming signal to confuse the eavesdropper. The SOP of the primary user and secondary user are examined in the presence of an eavesdropper. Furthermore, the lower bound and upper bound outage probability of the proposed bidirectional CCR system with Physical Layer Network Coding and SM are derived with respect to the harvested energy. Simulation results are presented to provide the functional perception of the proposed system behavior and emphasize the effect of different system parameters.

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