Title :
On the robustness issues of the parametric MLSE algorithms
Author :
Chen, Jiunn-Tsair ; Lee, Tong-Hui ; Chen, Ming-Chich
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
The parametric MLSE algorithms used to equalize the multipath wireless channels have been proposed by Chen and Arogyaswami (see ICASSP´97, Munich, Germany, 1997 and VTC´97, Phoenix, 1997). In this paper, we examine the robustness of these algorithms against performance degradation factors, such as additive Gaussian noise, and parameter estimation errors. We show that, in the specular multipath channels with a small number of paths, the parametric MLSE algorithms, compared with the MLSE algorithms with the conventional FIR channel estimation, always perform better
Keywords :
Gaussian noise; cellular radio; digital radio; direction-of-arrival estimation; equalisers; error statistics; maximum likelihood sequence estimation; multipath channels; DOA estimation; FIR channel estimation; GSM; IS-136; MLSE algorithms; TDMA system; additive Gaussian noise; digital mobile communications; multipath propagation; multipath wireless channel equalisation; parameter estimation errors; parametric MLSE algorithms; performance degradation factors; robustness; specular multipath channels; Additive noise; Baseband; Fading; Finite impulse response filter; Gaussian noise; Maximum likelihood estimation; Noise robustness; Parameter estimation; Signal processing; Wireless communication;
Conference_Titel :
Communications, 1999. ICC '99. 1999 IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-5284-X
DOI :
10.1109/ICC.1999.765534
