Decode-and-forward relaying has been shown to be a viable transmission protocol for wireless networks incorporating distributed spatial diversity. Practical systems may employ relay channels that experience statistically different signal fading. The performance of decode-and-forward relaying in channels with dissimilar fading parameters is investigated. In particular, a closed-form expression for the outage probability of a system with an arbitrary number of relays is derived

A closed-form expression for the outage probability of decode-and-forward relaying in dissimilar Rayleigh fading channels