A NOVEL COORDINATED BEAMFORMING SCHEME BASED ON LOCAL FEEDBACK AND QUANTIZATION BASED COMBINING IN DOWNLINK COMP SYSTEM

被引：0

作者：

Ding, Zhangcheng ^{[1
]}

Luo, Xun ^{[1
]}

Fang, Shu ^{[1
]}

Wu, Gang ^{[1
]}

Yang, Chunlin ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu 611731, Peoples R China

[2] DOCOMO Beijing Commun Labs Co Ltd, Beijing 100190, Peoples R China

来源：

PROCEEDINGS OF 2011 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY AND APPLICATION, ICCTA2011 | 2011年

关键词：

CoMP; coordinated beamforming; limited feedback; SLNR; QBC; shadowing correlation; COMMUNICATION;

D O I：

暂无

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：

In this paper we propose a novel limited feedback scheme based on local limited feedback combined with SLNR precoding and Quantization-based-Combining (QBC) in doWnlink Coordinated-Beamforming (CB) systems. The channels of serving cell and coordinated cells are quantized based on QBC technology. Due to more accurate channel quantization, the proposed scheme achieves considerable improvement over the conventional scheme which uses global feedback. Moreover, since inter-user shadowing correlation produces additional Inter-Cell-Interference (ICI) in a practical system, its influence is assessed in this paper. This work is seldom per formed be fore by other literatures, to the best of our knowledge.

引用

页码：45 / 49

页数：5

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