Outage Probability of Multihop Relaying with Cochannel Interferences over k-µ Fading Channels

Abstract

In this paper, we pursue a detailed outage probability analysis of multihop relaying systems taking into account the practical constraint of cochannel interferences (CCIs). Different from previous works, both relaying transmission and CCIs are performed over generalized -μ fading channels. For both independent identically and non-identically distributed -μ faded CCIs, the exact end-to-end signal-to-interference ratio expressions of the multihop relaying system are obtained. Moreover, we derive new, analytical outage probability expressions of multihop relaying systems in the presence of CCIs. In the high-power regime, simplified expressions are provided, revealing the implications of the channel parameters on the outage performance. These tractable results enable us to draw useful engineering insights about the impact of system and channel parameters on the outage probability of multihop relaying systems. Finally, simulation results are provided to validate our derived expressions.