Performance of Transmit Beamforming Codebooks with Separate Amplitude and Phase Quantization

被引：11
|
作者：
Dowhuszko, Alexis [1 ]
Hamalainen, Jyri [1 ]
机构：
[1] Aalto Univ, Sch Elect Engn, Dept Commun & Networking, FI-00076 Aalto, Finland
来源：
IEEE SIGNAL PROCESSING LETTERS | 2015年 / 22卷 / 07期
关键词：
Codebook design; interference mitigation; limited feedback terms; separate quantization; transmit beamforming; DIVERSITY; NETWORKS; CHANNELS; CAPACITY; SYSTEMS;
D O I：
10.1109/LSP.2014.2370762
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：
A simple quantization scheme is proposed to adjust separately the amplitudes and phases of signals in a codebook-based Transmit Beamforming (TBF) scheme. The proposed quantization scheme is valid for both desired signal power maximization (egoistic TBF) and co-channel interference mitigation (altruistic TBF), and does not require an exhaustive search to find the optimal TBF vector. Performance results are presented when variable numbers of bits for amplitude and phase feedback resolutions are used for both egoistic and altruistic TBF schemes.
引用
收藏
页码：813 / 817
页数：5
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