Postdetection diversity using differential phase detection for M-ary DPSK

Metric weighted diversity combining based on multiple differential phase detection and its performance in mobile communication environments

“…Because of this situation, the combination of differential detection (DD) and combining after detection, such as selective combining after differential detection (DD-SC) [2] and maximal ratio combining after differential detection (DD-MRC) [3], are mostly considered as diversity reception for differential PSK signals [4,5]. Aiming at improvement of the BER performance, MRC with the decision feedback-type multiple differential phase detection scheme [10] is also proposed [6].…”