Error performance is one of the main performance measures and the derivation of its closed-form expression has proved to be quite involved for certain communication systems operating over composite fading channels. In this letter, a unified closed-form expression, applicable to different binary modulation schemes, for the bit error rate of dual-branch selection diversity based systems undergoing independent but not necessarily identically distributed generalized-K fading is derived in terms of the extended generalized bivariate Meijer G-function.

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Keywords and Meijer G-function distribution, binary modulation schemes, bit error rate (BER), composite fading, Diversity schemes, dual-branch selection diversity, generalized-K (GK) model, selection combining
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Journal IEEE Transactions on Communications
Ansari, I.S. (Imran Shafique), Al-Ahmadi, S. (Saad), Yilmaz, F. (Ferkan), Alouini, M.-S. (Mohamed-Slim), & Yanikomeroglu, H. (2011). A new formula for the BER of binary modulations with dual-branch selection over generalized-K. IEEE Transactions on Communications, 59(10), 2654–2658. doi:10.1109/TCOMM.2011.063011.100303A