User cooperation diversity - Part 1: System description

被引:4571
作者
Sendonaris, A [1 ]
Erkip, E
Aazhang, B
机构
[1] Qualcomm Inc, Campbell, CA 95008 USA
[2] Polytech Univ, Dept Elect & Comp Engn, Brooklyn, NY 11201 USA
[3] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA
关键词
code-division multiple access (CDMA); diversity; fading; information rates; multiuser channels;
D O I
10.1109/TCOMM.2003.818096
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
Mobile users' data rate and quality of service are limited by the fact that, within the duration of any given call, they experience severe variations in signal attenuation, thereby necessitating the use of some type of diversity. In this two-part paper, we propose a new form of spatial diversity, in which diversity gains are achieved via the cooperation of mobile users. Part I describes the user cooperation strategy, while Part II focuses on implementation issues and performance analysis. Results show that, even though the interuser channel is noisy, cooperation leads not only to an increase in capacity for both users but also to a more robust system, where users' achievable rates are less susceptible to channel variations.
引用
收藏
页码:1927 / 1938
页数:12
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