Title :
A novel normalized threshold generalized selection scheme and its performance evaluation
Author :
Xiao, Lei ; Dong, Xiaodai
Author_Institution :
Dept. of Electr. Eng., Notre Dame Univ., IN, USA
Abstract :
In this paper, we propose and analyze a new generalized selection combining (GSC) scheme referred to as N-branch plus normalized threshold generalized selection combining (N+NT-GSC). Performance measures are obtained through the derivation of the moment generating function (MGF) of the diversity combiner output signal-to-noise ratio (SNR) for generalized fading channels. Implementation complexity of N+NT-GSC is investigated, and the mean and variance of the number of combined branches are derived in compact forms. The new N+NT-GSC is shown to bridge the characteristics of normalized threshold generalized selection combining (NT-GSC) and the conventional GSC, and exhibit better robustness than previously proposed NT-GSC over branch imbalance and fading distributions.
Keywords :
diversity reception; fading channels; diversity combiner; generalized fading channels; moment generating function; normalized threshold generalized selection scheme; signal-to-noise ratio; Bridges; Diversity reception; Energy capture; Fading; Performance analysis; Robustness; Signal generators; Signal to noise ratio; System performance; Testing;
Conference_Titel :
Communications, 2005. ICC 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8938-7
DOI :
10.1109/ICC.2005.1494761
