A general SER formula for an OFDM system with MDPSK in frequency domain over Rayleigh fading channels

Author

Zhong, Kun ; Tjhung, Tjeng Thiang ; Adachi, Fumiyuki

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

Volume

52

Issue

4

fYear

2004

fDate

4/1/2004 12:00:00 AM

Firstpage

584

Lastpage

594

Abstract

A closed-form formula for symbol-error rate (SER) of an orthogonal frequency-division multiplexing (OFDM) system with M-ary differential phase-shift keying (MDPSK) in frequency domain over Rayleigh fading channels is obtained. It is found that, by MDPSK in frequency domain, identical SERs can be achieved on all subcarriers. However, both time and frequency dispersion in the channel will introduce error floors. A comparison between OFDM-MDPSK in frequency domain and that in time domain reveals that the former system offers superior SER performance in a fast fading environment, while the latter performs better if the channel is mainly frequency selective. Moreover, the former system has lower implementation complexity.

Keywords

OFDM modulation; Rayleigh channels; differential phase shift keying; dispersive channels; error statistics; M-ary differential phase shift keying; OFDM system; Rayleigh fading channel; frequency domain; guard interval; symbol error rate; Differential phase shift keying; Digital audio broadcasting; Digital video broadcasting; Fading; Frequency division multiplexing; Frequency domain analysis; OFDM modulation; Quadrature amplitude modulation; Rayleigh channels; Telephony;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2004.826342

Filename

1291799