Outage performance analysis of cooperative vehicle network communication system over N-Nakagami fading channels

Abstract:
To improve the performance of the cooperative vehicular network (CVN) system, hybrid decode-amplify forward (HDAF) protocol, antenna selection (AS), and equal gain combining (EGC) techniques are applied to the N-Nakagami fading channel. The relays apply HDAF protocol, and the destination employs the EGC. Optimal antenna selection (OAS) and sub-optimal antenna selection (SAS) are proposed based on the received signal-to-noise ratio, and the outage probability expressions are derived. The simulation results show that the theoretical values are consistent with the simulation values. In addition, the number of antennas, channel fading coefficients and channel cascade number significantly impact the system performance.