Performance comparison of sub-optimal algorithms based on MIMO-OFDM systems

Multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) is the key technique for generation communications systems. In this paper, several detection algorithms based on MIMO-OFDM systems are briefly introduced, and their performances are evaluated by computer simulation. The simulation results indicate that performance of these algorithms for MIMO-OFDM system is similar to the performance for flat MIMO system. We conclude that the so-called ZF-PIC algorithm is very attractive compared to conventional ZF-VBLAST in performance.