Path diversity reception using steering vector arrays and MLSE for frequency-selective fading channels

In this paper, the path diversity reception using steering vector arrays and a maximum likelihood sequence estimator is proposed to cope with frequency-selective fading. The proposed scheme extracts the direct path and the 1-symbol delayed path separately using the two sets of the single constraint least mean square steering vector array. It combines the array output signals with the branch metric combining Viterbi algorithm to estimate the most likely transmitted sequence. Simulation results show that the proposed scheme can provide a better bit error rate performance than the 1-path reception in frequency-selective fading channels