A fractionally spaced MLSE receiver

Author

Hamied, Khalid ; Stüber, Gordon L.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

1

fYear

1995

fDate

18-22 Jun 1995

Firstpage

7

Abstract

A new receiver structure is proposed that employs maximum likelihood sequence estimation (MLSE) on a sequence of T/2-spaced samples for systems having at most 100% excess bandwidth. A fixed analog filter is implemented in the proposed receiver that is matched to the transmitted pulse instead of the received pulse. A noise-whitening matched filter is also implemented in the receiver, having a fixed structure that is independent of the unknown channel. It is shown that the performance of the proposed receiver is identical to a conventional MLSE receiver and is insensitive to the sampler timing phase. The new receiver is suitable for rapidly time-variant channels

Keywords

analogue circuits; estimation theory; filtering theory; matched filters; maximum likelihood estimation; receivers; signal sampling; time-varying channels; bandwidth; fixed analog filter; fractionally spaced MLSE receiver; maximum likelihood sequence estimation; noise-whitening matched filter; rapidly time-variant channels; receiver performance; receiver structure; sampler timing phase; transmitted pulse; Band pass filters; Bandwidth; Low pass filters; Matched filters; Maximum likelihood estimation; Noise shaping; Sampling methods; Signal to noise ratio; Timing; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on

Conference_Location

Seattle, WA

Print_ISBN

0-7803-2486-2

Type

conf

DOI

10.1109/ICC.1995.525129

Filename

525129