Title :
Closed-form BER results for MRC diversity with channel estimation errors in Ricean fading channels
Author :
Cao, Lingzhi ; Beaulieu, Norman C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, Alta., Canada
fDate :
7/1/2005 12:00:00 AM
Abstract :
Closed-form expressions for computing the average bit error rate (BER) for a class of modulation schemes in Ricean flat fading channels with maximal-ratio combining diversity and channel estimation errors are derived. The results are valid for a general multichannel model that includes Ricean and Rayleigh fading channels. The results are applicable to channel estimators that are jointly Gaussian with the channel gain. The BER performance of pilot symbol-assisted modulation is studied. The effects of estimation error on the diversity system are examined as well as the influences of varying the Ricean factor K and changing the number of diversity branches L.
Keywords :
Gaussian channels; Rayleigh channels; Rician channels; channel estimation; diversity reception; error statistics; modulation; Gaussian channel; MRC diversity; Rayleigh fading channel; Ricean flat fading channel; bit error rate; channel estimation error; channel gain; closed-form BER; maximal-ratio combining diversity; modulation scheme; multichannel model; pilot-assisted modulation; AWGN; Amplitude modulation; Bit error rate; Channel estimation; Diversity reception; Error analysis; Estimation error; Fading; Rayleigh channels; Rayleigh scattering; Diversity; estimation error; fading channels; maximal-ratio combining; pilot symbol-assisted modulation;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2005.850320
