Block differentially encoded OFDM with maximum multipath, diversity

被引：29
作者：
Liu, ZQ [1 ]
Giannakis, GB
机构：
[1] Univ Iowa, Dept Elect & Comp Engn, Iowa City, IA 52242 USA
[2] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2003年 / 2卷 / 03期
基金：
美国国家科学基金会;
关键词：
differential encoding; diversity methods; orthogonal frequency-division multiplexing (OFDM);
D O I：
10.1109/TWC.2003.811184
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：
This letter proposes a novel block differentially encoded orthogonal frequency-division multiplexing for multicarier transmissions over frequency-selective fading channels. Choosing appropriate system parameters, me divide the set of correlated subchannels into subsets of independent subchannels. Within each subset, differential unitary space-time modulation is performed by treating each subchannel as a transmit antenna. In, addition to low complexity, the proposed system enjoys maximum multipath diversity and high coding advantages. Analytic evaluation and corroborating simulations reveal its performance merits.
引用
收藏
页码：420 / 423
页数：4
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