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下行多小区MIMO系统协作多点传输联合调度机制

DOI: 10.11830/ISSN.1000-5013.2012.03.0260, PP. 260-264

Keywords: 下行多小区,多输入多输出,协作多点传输,联合调度,信道相关性

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Abstract:

提出一种基于协作多点传输的下行多小区多输入多输出(MIMO)系统联合调度机制,充分利用多小区间的联合调度来降低小区间的干扰,提高系统的吞吐量.该方案利用多小区基站间的协作,根据用户反馈的信道信息间的相关性,在不牺牲系统资源情况下联合调度互相干扰小的用户抑制小区间的干扰.仿真表明:该方案在相同情况下与传统的多小区下行MIMO系统相比,具有显著的小区平均系统吞吐量增益及边缘用户吞吐量增益.

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