Dixit D.Sahu P.R.2025-02-17201419http://dx.doi.org/1109/LCOMM.2014.2315616https://idr.iitbbs.ac.in/handle/2008/617Error performance of a L-branch selection combining (SC) receiver is analyzed over independent and non-identically distributed Nakagami-m fading channels. A novel exact closed-form expression for average symbol error rate (ASER) for general order rectangular quadrature amplitude modulation (RQAM) scheme is derived using cumulative distribution function based approach. Further, exact closed-form ASER expressions for differentially encoded quadri-phase shift-keying (DE-QPSK) and ?4-QPSK modulation schemes have been presented. Numerically evaluated results are plotted and compared with Monte Carlo simulation results to verify the correctness of the derivations. � 2014 IEEE.enAverage symbol error rate (ASER)Nakagami-m fadingrectangular quadrature amplitude modulation (RQAM) schemeselection combining (SC) receiverArticle