ANALYSIS OF M-ARY PHASE-SHIFT KEYING WITH DIVERSITY RECEPTION FOR LAND-MOBILE SATELLITE CHANNELS

An analytical technique well suited to numerical analysis is presented for computing the average bit-error rate (BER) and outage probability of M-ary phase-shift keying (PSK) in the land-mobile satellite channe l (LMSC) with microdiversity reception, Closed-form expressions are fo und for L-branch microdiversity using both selection diversity combini ng (SDC) and maximal ratio combining (MRC), These expressions are exte nded to include both M-ary coherent PSK (M-PSK) and differential PSK [ M-differential PSK (DPSK)]. Following previous empirical studies, the LMSC is modeled as a weighted sum of Rice and Suzuki distributions, Nu merical results are provided illustrating the achievable performance o f both M-PSK and M-DPSK with diversity reception, Using measured chann el parameters, the performance in various mobile environments for vari ous satellite elevation angles is also found.