Reduction of the Effect of Carrier Frequency Offset at Orthogonal Frequency Division Multiplexing Systems

被引：0
|
作者：
Stosovic, Slavimir N. [1 ]
Dimitrijevic, Bojan R. [2 ]
Milosevic, Nenad D. [2 ]
Nikolic, Zorica B. [2 ]
机构：
[1] High Tech Sch Profess Studies, Aleksandra Medvedeva 20, Nish 18000, Serbia
[2] Univ Nis, Fac Elect Engn, Nish 18000, Serbia
来源：
2013 21ST TELECOMMUNICATIONS FORUM (TELFOR) | 2013年
关键词：
Orthogonal frequency division multiplexing; frequency offset; differential detection; adaptive filters; reconfigurable receiver; SYMBOL DIFFERENTIAL DETECTION; OFDM SYSTEMS; SYNCHRONIZATION; SIGNALS;
D O I：
暂无
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：
Performance of the orthogonal frequency division multiplexing systems is significantly influenced by the carrier frequency offset. This imposes the use of differential modulation schemes instead of the coherent detection based schemes. The paper presents two classes of receivers with the improved performance in the presence of the frequency offset. The first class are the improved existing receivers, and the second class are new reconfigurable receivers, based on adaptive filters. The detection performance of the reconfigurable receivers is close to the coherent detection performance of the differentially encoded signal. Also these receivers are able to operate within significantly wider frequency offsets range than the other receivers with similar complexity.
引用
收藏
页码：248 / +
页数：3
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