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A LOW-COMPLEXITY PORT SELECTION AND POWER ALLOCATION SCHEME IN DISTRIBUTION MIMO SYSTEMS

机译:分布式MIMO系统中的低复杂度端口选择和功率分配方案

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摘要

Information theoretical results have shown that Distributed Antenna Systems (DAS) can obtain higher capacity than Co-located Antenna Systems (CAS). In this paper,we investigate a downlink port selection and power allocation scheme in Distributed Multiple-Input Multiple-Output (D-MIMO) systems,where Distributed Antenna (DA) ports randomly locate in the cell. The contri-bution of this paper can be summarized as two parts. Firstly,we analyze how antenna correlation af-fects power allocation in D-MIMO systems. Secondly,based on large scale fading and antenna corre-lation,a low-complexity port selection and power allocation scheme is proposed. In the proposed scheme,we take both large scale fading and antenna correlation into consideration. Moreover,User Equipment (UE) only needs to feedback the rank of transmit antenna correlation matrix,which will not increase system complexity too much. Simulation results verify the capacity improvement based on the proposed power allocation scheme.

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  • 来源
    《电子科学学刊(英文版)》 |2010年第2期|145-150|共6页
  • 作者单位

    Beijing University of Posts and Telecommunications,Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing 100876,P.R.China;

    Beijing University of Posts and Telecommunications,Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing 100876,P.R.China;

    Beijing University of Posts and Telecommunications,Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing 100876,P.R.China;

    Beijing University of Posts and Telecommunications,Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing 100876,P.R.China;

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  • 正文语种 chi
  • 中图分类 无线通信;
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  • 入库时间 2022-08-19 04:11:00
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