AoA based analysis of vector sensor receiver for underwater acoustic communications

In this paper, we analyze a compact vector sensor receiver using angle of arrival (AoA) framework which was recently proposed by Fauziya et. al. We demonstrate that this receiver performs better than a scalar receiver at no extra computational cost. The receiver exploits the inherent capability of a vector sensor to provide spatial diversity without the use of a sensor array. The paper also discuss a compressive sensing based channel estimator that performs better than a least squares estimator. Channel estimation is performed using a training sequence and the simulation clearly bring out the superior performance of the compressive sensing based channel estimator and that of the vector sensor based compact receiver.