ABSTRACT
This article derives closed-form formulas for two integrals involving the generalized Marcum Q-Function with linear arguments. These integrals are known to arise in the analysis of multichannel diversity reception of differentially coherent and noncoherent digital communications in Rayleigh and Nakagami-m channels. Applications of the results for efficient performance evaluation of the average bit error rates of dual branch selection diversity combining and post-detection equal gain combining over independent and correlated fading channels are also presented.