A New Frequency Synchronization Algorithm in The TDS-OFDM Systems

被引：0
|
作者：
Dai, Ling-Long [1 ]
Fu, Jian [1 ]
Wang, Jun [1 ]
Yang, Zhi-Xing [1 ]
Alaniz, Arthur [2 ]
机构：
[1] Tsinghua Univ, State Key Lab Microwave & Digital Commun, Dept Elect Engn, Beijing 100084, Peoples R China
[2] Univ Southern Calif, Dept Elect Engn, Los Angeles, CA 90089 USA
来源：
2008 11TH IEEE SINGAPORE INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS (ICCS), VOLS 1-3 | 2008年
关键词：
D O I：
10.1109/ICCS.2008.4737140
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper proposes a new frequency synchronization algorithm based on alternating guard intervals in the TDS-OFDM system. It utilizes the following two facts: the maximum length of identical sequences exist in the alternating guard intervals in the TDS-OFDM system and high precise frequency estimation can be achieved by extending the equivalent length of the delay for autocorrelation in the conventional frequency synchronization algorithm. The variance of the frequency estimation over a typical DTTB multi-path channel in the proposed algorithm is dramatically decreased from 10(-8), in the conventional algorithm, to 10(-13). The proposed algorithm is also robust against timing errors as verified by the simulation results. In addition, much lower hardware complexity can be achieved.
引用
收藏
页码：44 / +
页数：2
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