Blind receiver design-based multi-dimensional stable distribution model using the EM algorithm

Multi-antenna receivers are a key technology for modern communication systems. Signal attenuation in the very low frequency (VLF) channel is serious problem. In addition to high signal attenuation, resulting noise on VLF non-Gaussian. Hence, analyze and address issue of normal operation multi-antenna receiver channel, we must study detection problem multi-dimensional non-Gaussian fading channel. Motivated by existing blind an underwater submarine single-antenna receiver, estimation algorithm under model. this study, propose based expectation-maximization (EM) algorithm. The proposed can reduce noise. addition, nonlinear that accurately receive transmitted over high-attenuation Numerical simulation results uncorrelated correlated channels confirm design close optimal, with computation complexity.