Low-complexity equalization to OFDM applied in underwateracoustic communications
WU Chang-qi, WEN Na(Information Engineering College, Yanshan University, Qinhuang dao, 066004, China)
Traditional equalizer for eliminating ICI is complicated because of the characteristics of underwater acoustic channel. This paper proposes a scheme of equalization with low-complexity, which simplifies the channel matrix with linear pre-processing and iterative MMSE estimation to estimate symbols. Simulation results indicate that the equalizer can improve SINR and has significant complexity advantages in underwater acoustic communications over previous methods.
【CateGory Index】： TN929.3