Performance Comparison of Limited Feedback Codebook-Based Downlink Beamforming Schemes for Distributed Antenna Systems

被引：2
|
作者：
Prabhu, Vinay Uday [1 ]
Karachontzitis, Sotiris [1 ]
Toumpakaris, Dimitris [1 ]
机构：
[1] Univ Patras, Dept Elect & Comp Engn, Wireless Telecommun Lab, GR-26110 Patras, Greece
来源：
2009 1ST INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATION, VEHICULAR TECHNOLOGY, INFORMATION THEORY AND AEROSPACE & ELECTRONIC SYSTEMS TECHNOLOGY, VOLS 1 AND 2 | 2009年
关键词：
FINITE RATE FEEDBACK;
D O I：
10.1109/WIRELESSVITAE.2009.5172445
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
In this paper, we consider limited feedback codebook-based downlink beamforming involving two Remote Antenna Units with two antennas each transmitting to a single-antenna Mobile Terminal. A Central Unit to which the two Remote Antenna Units are connected enables centralized joint beamforrning. We consider different practical channel scenarios that may arise in Distributed Antenna Systems and gauge the performance of the Grassmannian, Kerdock and Unitary-DFT codebooks. We then compare the performance when modified code books that exploit information such as transmit antenna correlation are used. We conclude the paper by listing the strengths and drawbacks of each of the three codebooks.
引用
收藏
页码：171 / 176
页数：6
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