Performance Evaluation of Low-complexity Receivers for MIMO Underwater Spatially Correlated Channels

Abstract

This paper shows that low-complexity combining techniques such as Equal Gain Combining (EGC) and Maximum Ratio Combining (MRC) can be employed with multiple input multiple output (MIMO) systems applied to underwater acoustic (UWA) communications. This brings added value thanks to the low-complexity receivers and efficient processing, while achieving a good performance, even in scenarios with correlation between antennas.