Title :
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
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;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2002.806468
