Outage performance analysis of dual-hop multi-relay decode-and-forward system for asymmetric fading channels

Abstract

The outage performance of dual-hop multi-relay decode-and-forward (DF) system for asymmetric fading channels is analyzed with the help of outage probability (Poutage). The channels between the source and relays are assumed to be generalized (k-μ) fading channels whereas channels between the relays and destination are generalized (η-μ) fading channels. Formulation of outage probability expression is done for the considered system model. This paper contributes an exact formula for outage probability for dual-hop multi-relay asymmetric fading channels. Derived formulation of outage probability is in infinite series form nevertheless the series converges promptly and therefore can be precisely approximated by considering finite number of terms. Examples are presented for different values of parameters k, μ and η. Derived expression is upheld by simulation.