A phase noise suppression algorithm for OFDM-based WLANs

Author

Wu, Songping ; Bar-Ness, Yeheskel

Author_Institution

Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA

Volume

6

Issue

12

fYear

2002

Firstpage

535

Lastpage

537

Abstract

Orthogonal frequency-division multiplexing (OFDM) has been specified by the IEEE 802.11a standard as the transmission technique for high-rate wireless local area networks (WLANs). The performance of an OFDM system, however, is heavily degraded by random Wiener phase noise, which causes both common phase error (CPE) and inter-carrier interference (ICI). To mitigate this problem, a new phase noise suppression (PNS) algorithm is proposed to efficiently eliminate the effect of phase noise on OFDM-based WLANs. Numerical results are presented to illustrate the effectiveness of the proposed algorithm.

Keywords

IEEE standards; OFDM modulation; interference suppression; phase noise; radiofrequency interference; random noise; telecommunication standards; wireless LAN; IEEE 802.11a standard; OFDM-based WLAN; common phase error; inter-carrier interference; orthogonal frequency-division multiplexing; phase noise suppression algorithm; random Wiener phase noise; wireless local area networks; Additive white noise; Channel estimation; Degradation; Frequency division multiplexing; Frequency synchronization; Interference; OFDM; Phase noise; Signal processing algorithms; Wireless LAN;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2002.806468

Filename

1134136