Title :
Optimum diversity receiver structures for combining with estimation errors
Author :
Chen, Yunfei ; Beaulieu, Norman C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
fDate :
29 Nov.-3 Dec. 2004
Abstract :
Optimum diversity receivers that operate in the presence of estimation errors are proposed. Previous work has mainly examined the performance of maximal ratio combining (MRC) with estimation errors. It is shown that MRC is not optimal when estimation errors occur. Moreover, it is shown that the optimum diversity receiver in the presence of estimation errors can be derived by using knowledge of the channel estimate statistics. Numerical results show that the optimum diversity receiver can perform as much as 2.0 dB in signal-to-noise ratio better than the conventional MRC receiver in some cases.
Keywords :
channel estimation; diversity reception; error statistics; radio receivers; SNR; channel estimate statistics; diversity combining; estimation errors; maximal ratio combining; optimum diversity receiver structures; signal-to-noise ratio; Computer errors; Diversity reception; Error analysis; Estimation error; Fading; Phase shift keying; Quadrature amplitude modulation; Signal to noise ratio; Statistical analysis; Statistical distributions;
Conference_Titel :
Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE
Print_ISBN :
0-7803-8794-5
DOI :
10.1109/GLOCOM.2004.1377992
