Diversity of MIMO STBC and adaptive OFDMA under correlated fading channel
Junlin Chen · Journal of Communications · 2006
A spatial-temporal diversity theory based on the MIMO STBC system under the correlated fading channel was presented. It was pointed out that the performance of the system was deteriorated because of the channel correlation. The traditional method of analyzing diversity gain and coding gain was very complicated, thus an equivalent SISO model for MIMO STBC system was introduced, which depicted the relationship between the SNR and the eigenvalues of the correla-tion channel matrix. Furthermore, an adaptive OFDM access algorithm for multi-users in MIMO-OFDM system was pro-posed. The simulations show the adaptive algorithm has optimal performance and higher spectrum efficiency than FDMA.