A Modified Opportunistic Beamforming for Time-Correlated Fading Channels

被引：4
|
作者：
Baran, Iuri R. [1 ]
Uchoa-Filho, Bartolomeu F. [1 ]
机构：
[1] Univ Fed Santa Catarina, Dept Elect Engn, Commun Res Grp GPqCom, BR-88040900 Florianopolis, SC, Brazil
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2008年 / 7卷 / 11期
关键词：
Multiple antennas; multiuser diversity; opportunistic beamforming; time-correlated fading channels;
D O I：
10.1109/T-WC.2008.070550
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：
We propose an enhancement of opportunistic beamforming (OBF) to improve the system's overall throughput over time-correlated fading channels. By saving at the base station (BS) the sequence of antenna gains and corresponding SNRs for each user, the proposed system can adopt for the selected user the most appropriate antenna gain from the memory, rather than the current gain, as in the original OBF approach. Computer simulation results for the Jakes-correlated fading channels indicate a favorable throughput performance. Moreover, the proposed scheme can be easily combined with previous enhancements of OBF, yielding further performance improvements.
引用
收藏
页码：4082 / 4087
页数：6
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