Title :
Multi-channel MLSE equalizer with parametric FIR channel identification
Author :
Chen, Jiunn-Tsair ; Paulraj, Arogyaswami
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Abstract :
We propose an optimal multi-channel MLSE equalizer (using multiple antennas) with parametric FIR channel identification, and investigate the effects of this algorithm on the overall BER performance in the TDMA system. By exploring the structure of the specular multi-path Rayleigh-fading channels, we are able to reduce the number of unknown parameters to provide a better channel estimate for the MLSE equalizer. An analytic BER lower bound for the general linear modulation schemes in the specular multi-path Rayleigh-fading channels is derived. Some simulation results that illustrate the performance of the proposed algorithm in the GSM system are also presented and compared to the analytic lower bound
Keywords :
Rayleigh channels; access protocols; cellular radio; coding errors; equalisers; error statistics; estimation theory; fading; maximum likelihood estimation; modulation; multipath channels; radio networks; time division multiple access; transient response; BER performance; GSM system; TDMA; analytic BER lower bound; channel estimate; linear modulation; mobile radio networks; multichannel MLSE equalizer; multipath Rayleigh fading channels; multiple antennas; parametric FIR channel identification; simulation results; specular channels; Algorithm design and analysis; Analytical models; Bit error rate; Equalizers; Finite impulse response filter; GSM; Maximum likelihood estimation; Performance analysis; Rayleigh channels; Time division multiple access;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.600421
