A new algorithm for time domain equalization in OFDM systems

Author

Zhang, Jianmin ; Ser, Wee

Author_Institution

Center for Signal Process., Nanyang Technol. Univ., Singapore

Volume

2

fYear

2002

fDate

2002

Firstpage

904

Abstract

In this paper, the problem of time domain equalization in OFDM systems with insufficient cyclic prefix is discussed. A new algorithm is proposed to produce maximum throughput. This algorithm has two major steps: firstly, the maximum signal-to-interference-plus-noise ratio (SINR) in the time domain is computed; secondly, the coefficients of the time domain equalizer is determined by an iterative process that minimizes a SINR-related cost function. Simulation results show that the proposed algorithm is able to produce an improved throughput performance to some existing algorithms.

Keywords

OFDM modulation; cyclic codes; equalisers; iterative methods; minimisation; telecommunication traffic; time-domain analysis; OFDM systems; cost function minimization; insufficient cyclic prefix; iterative process; maximum SINR; signal-to-interference-plus-noise ratio; throughput performance; time domain equalization; Cost function; Equalizers; Intersymbol interference; Iterative algorithms; Mean square error methods; OFDM; Signal processing; Signal processing algorithms; Signal to noise ratio; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th

ISSN

1090-3038

Print_ISBN

0-7803-7467-3

Type

conf

DOI

10.1109/VETECF.2002.1040731

Filename

1040731