Orthogonal frequency division multiplex synchronization techniques for frequency-selective fading channels

被引：138
|
作者：
Keller, T [1 ]
Piazzo, L
Mandarini, P
Hanzo, L
机构：
[1] Univ Southampton, Dept Elect & Comp Sci, Southampton SO17 1BJ, Hants, England
[2] Univ Roma La Sapienza, Dept Info Com, I-00184 Rome, Italy
来源：
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 2001年 / 19卷 / 06期
关键词：
DVB; HIPERLAN; OFM; synchronization;
D O I：
10.1109/49.926356
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The effect of time-domain and frequency-domain synchronization errors is quantified in the context of various coherently and noncoherently detected 1, 2, and 4 bits/symbol OFDM constellations, in order to demonstrate the wide applicability of the techniques proposed for mitigating the bit error rate (BER) performance degradations inflicted. A reference symbol is proposed and a range of correlation techniques are suggested for coarse and fine synchronization. Their performance is studied over time-dispersive Rayleigh fading channels, with the conclusion that the proposed synchronization techniques result in virtually unimpaired BERs over the range of wideband channels investigated in comparison to a perfectly synchronized system.
引用
收藏
页码：999 / 1008
页数：10
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