Performance of Hybrid Codebook Techniques for MISO Downlink Channels with Limited Feedback

被引：0
|
作者：
Jung, Sungkyu [1 ]
Ko, Kyeongjun [1 ]
Lee, Jungwoo [1 ]
机构：
[1] Seoul Natl Univ, Sch Elect Engn & Comp Sci, Seoul 151, South Korea
来源：
2011 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT) | 2011年
关键词：
MIMO BROADCAST CHANNELS; FINITE-RATE FEEDBACK; DIRTY-PAPER; CAPACITY;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
Multi-antenna downlink system with limited feedback can provide enormous capacity gains. In practical, two systems can be considered. One is zero-forcing beamforming (ZFBF), and the other is per user unitary rate control ((PURC)-R-2) which has been proposed for emerging cellular standards. In order to have good performance, ZFBF requires many feedback bits, and (PURC)-R-2 requires many users. Recently, the authors proposed a hybrid multi-user MISO system which has merits of those two schemes simultaneously. In this paper, we analyze the sum-rate performance and quantization error of the hybrid scheme. The throughput scaling laws are also derived in high and medium SNR regimes.
引用
收藏
页码：1302 / 1306
页数：5
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