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

页码：1302 / 1306

页数：5

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