Title :
Combined linear-decision feedback sequence estimation: an improved system design
Author :
Aldosari, Saeed A. ; Alshebeili, Saleh A. ; Al-Sanie, Abdulhameed M.
Author_Institution :
Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia
Abstract :
Decision feedback sequence estimation (DFSE) is a reduced state alternative to maximum likelihood sequence estimation (MLSE). In this paper, we examine the performance of a system composed of a linear pre-filter in conjunction with a DFSE. In addition, we present a new optimization approach for the linear pre-filter. This approach has an advantage over MSE-based approaches in that it takes into account the effects of noise correlation and error distance variations. The performance of the proposed optimization approach is evaluated and compared with several existing optimization techniques
Keywords :
automatic repeat request; computational complexity; filtering theory; DFSE; combined linear-decision feedback sequence estimation; error distance variations; linear pre-filter; noise correlation; optimization approach; optimization techniques; reduced state alternative; Additive white noise; Bit error rate; Decision feedback equalizers; Feeds; Intersymbol interference; Maximum likelihood detection; Maximum likelihood estimation; State estimation; State feedback; Viterbi algorithm;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921057
