A simulation study of least-squares received beamforming on HAP frequency-selective channel

Abstract

This paper explores the impact of slightly frequencyselective Rician fading channel on the performance of leastsquares received beamforming. This channel type is encountered in the communications from high-altitude platform (HAP) to high-speed train (HST) in urban area and at Ka-band operating frequency. The system performance in terms of mean-square error (MSE) and bit error rate (BER) for different scenarios of Direction of Arrival (DOA) are evaluated by Monte Carlo simulation.