Equalization and block-synchronization for OFDM signals

Author

Prakriya, Shankar

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India

Volume

4

fYear

2001

fDate

2001

Firstpage

2317

Abstract

In this paper, blind algorithms based on a deterministic framework are proposed for equalization of finite-memory linear time-invariant (LTI) channels carrying OFDM signals. Unlike algorithms proposed to date, the channel memory is not restricted to be smaller than the cyclic prefix. It is shown that equalizers termed "synchronizer-equalizers" can be estimated blindly and always result in block-synchronized output, thus making separate synchronization unnecessary. These algorithms are based on a deterministic frame-work, and require short data records. Performance of the proposed algorithms is analyzed by computer simulations

Keywords

OFDM modulation; blind equalisers; synchronisation; telecommunication channels; OFDM signals; blind algorithms; block-synchronized output; channel memory; data records; deterministic framework; finite-memory linear time invariant channels; synchronizer-equalizers; Algorithm design and analysis; Blind equalizers; Computer simulation; DSL; Frequency conversion; Frequency synchronization; Mobile communication; OFDM; Performance analysis; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on

Conference_Location

Salt Lake City, UT

ISSN

1520-6149

Print_ISBN

0-7803-7041-4

Type

conf

DOI

10.1109/ICASSP.2001.940463

Filename

940463