Title :
Performance analysis of L-branch equal gain combiners in equally correlated Rayleigh fading channels
Author :
Chen, Yunxia ; Tellambura, Chintha
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, Alta., Canada
fDate :
3/1/2004 12:00:00 AM
Abstract :
Theoretical performance results for L-branch (L≥3) coherent equal-gain combining (EGC) in correlated fading channels are not known. This letter develops a novel approach for performance analysis of L-branch EGC in equally correlated Rayleigh fading channels. Such channel gains can be transformed into a set of conditionally independent channel gains. The cumulative distribution function (cdf) of the EGC output signal-to-noise ratio (SNR) is, therefore, derived. The symbol error rate (SER) of different modulation schemes with EGC in equally correlated Rayleigh fading channels is evaluated. Numerical results that illustrate the effects of equally correlated fading on the SER performance of EGC are also provided.
Keywords :
Rayleigh channels; modulation; L-branch equal gain combiner; SNR; conditionally independent channel gain; cumulative distribution function; diversity; equally correlated Rayleigh fading channel; modulation scheme; signal-to-noise ratio; symbol error rate; Bit error rate; Distribution functions; Diversity reception; Error analysis; Fading; Performance analysis; Performance gain; Rayleigh channels; Rician channels; Signal to noise ratio;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.825722
