Limited CSI Feedback based on an Adaptive Codebook for Temporally Correlated MISO Fading Channels

被引：0

作者：

Zhang, Dan ^{[1
]}

Doerpinghaus, Meik ^{[1
]}

Ascheid, Gerd ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Integrated Signal Proc Syst, D-52056 Aachen, Germany

来源：

2008 42ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS, VOLS 1-4 | 2008年

关键词：

D O I：

暂无

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

To increase the link capacity and reliability, the use of channel state information at the transmitter in multi-antenna systems is often discussed in current research. Such information is often obtained via a feedback link which is usually limited by rate constraints. In this paper, we propose a novel scheme to quantize the channel direction vector by exploiting the temporal correlation for MISO fading channels. With the same amount of feedback bits, our proposed scheme achieves a significant capacity gain on the forward link compared to conventional quantization techniques. This gain increases with decreasing channel dynamics.

引用

页码：1295 / 1299

页数：5

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