Title :
Exact error-rate analysis of diversity 16-QAM with channel estimation error
Author :
Cao, Lingzhi ; Beaulieu, Norman C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, Alta., Canada
fDate :
6/1/2004 12:00:00 AM
Abstract :
The bit-error rate (BER) performance of multilevel quadrature amplitude modulation with pilot-symbol-assisted modulation channel estimation in static and Rayleigh fading channels is derived, both for single branch reception and maximal ratio combining diversity receiver systems. The effects of noise and estimator decorrelation on the received BER are examined. The high sensitivity of diversity systems to channel estimation error is investigated and quantified. The influence of the pilot-symbol interpolation filter windowing is also considered.
Keywords :
Rayleigh channels; channel estimation; diversity reception; error analysis; error statistics; filtering theory; interpolation; quadrature amplitude modulation; radio receivers; Rayleigh fading channel; bit-error rate performance; channel estimation; channel estimation error; diversity QAM; diversity system; estimator decorrelation; exact error-rate analysis; maximal ratio combining diversity receiver system; multilevel quadrature amplitude modulation; pilot-symbol interpolation filter windowing; pilot-symbol-assisted modulation; single branch reception; Amplitude modulation; Bit error rate; Channel estimation; Decorrelation; Diversity reception; Error analysis; Fading; Filters; Interpolation; Quadrature amplitude modulation;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2004.829516
