A new method of phase noise detection and compensation in OFDM systems

被引:1
作者
Liu, GH [1 ]
Zhu, WL [1 ]
机构
[1] Univ Elect Sci & Technol China, Coll Elect Engn, Chengdu 610054, Peoples R China
来源
2004 INTERNATIONAL CONFERENCE ON COMMUNICATION, CIRCUITS, AND SYSTEMS, VOLS 1 AND 2: VOL 1: COMMUNICATION THEORY AND SYSTEMS | 2004年
关键词
per-symbol; CPE; phase noise; OFDM;
D O I
10.1109/ICCCAS.2004.1346074
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Phase noise introduced by the receiver local oscillator has effects on the performance of Orthogonal Frequency Division Multiplexing (OFDM) systems severely. The common compensation method can only correct common phase error (CPE) caused by the low-frequency part of the phase-noise spectrum, and can't compensate phase noise thoroughly. In this paper, a new method, Per-symbol phase noise detection and compensation method, is proposed. Based on a frequency-domain linearized parametric model for phase noise, the method not only deals with CPE more effectively, but also compensates most of inter-carrier interference (ICI) induced by the high-frequency part of the phase-noise spectrum. As will be seen, this method well compensates phase noise in higher SNRs and lower quality tuners.
引用
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页码:308 / 312
页数:5
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