Analysis of the AMC-ARQ System over MIMO Correlated Fading Channels

In this paper, we focus on investigating the effect that fading correlation has on the average spectral efficiency (ASE) and outage probability of the cross-layer system, combining of adaptive coding and modulation (AMC) and truncated automatic repeat request (T-ARQ) in the presence of STBC transmit diversity on fading channels. We derive the expressions for the average spectral efficiency and outage probability of this STBC cross-layer scheme over correlated fading channels. Furthermore, we show the numerical simulation results to illustrate that different correlation coefficients induce the different loss of the average spectral efficiency and probability of outage compared with the independent fading.