Outage Probability in Network Coding Based Cooperative Wireless Networks over Nakagami-m Fading Channels

Abstract

In this paper, we develop an accurate closed-form analytic expression of the outage probability for each source-destination (S-D) pair in the two S-D pairs two relays wireless network, where cooperative network coding is applied over Nakagami-$m$ fading channels. For different values of the shape parameter $m$, our analytic relation is validated with Monte-Carlo simulations of the outage probability using the overall equivalent signal-to-noise ratio (SNR) within each source-destination pair. The outage probability is also provided for the extended versions of the network consisting of multiple relays and multiple S-D pairs. Furthermore, we investigate the role of varying the fading factor ($m$ values) on different links in the end-to-end outage probability performance, which yields interesting results that may be crucial for relay selection and power allocation procedures. Moreover, we derive the diversity order for the generalized extended version of cooperative network coded wireless networks.