下行多小区MIMO系统协作多点传输联合调度机制  

Jointly Schedule Scheme of Coordinated Multiple Point Transmission and Reception for Downlink Multicell MIMO Systems

作　　者：王燕琼[1] 李国刚[1,2] 

机构地区：[1]华侨大学信息科学与工程学院,福建厦门361021 [2]厦门大学信息科学与技术学院,福建厦门361005

出　　处：《华侨大学学报（自然科学版）》2012年第3期260-264,共5页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金资助项目(A0640005);中央高校基本科研业务费及国务院侨办科研基金资助项目(10QZR02);福建省泉州市科技计划项目(2011G6)

摘　　要：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.A novel jointly schedule scheme for downlink multicell multiple-input multiple-output（MIMO） systems based on coordinated multiple point transmission and reception is proposed in this paper,which improves the system throughput by exploiting the jointly schedule among cells to reduce the inter-cell interference.The proposed scheme uses the cooperative among the base stations and then according to the channel correlation among the uses,which is fed back by the user.As a result,the system can jointly schedule the users which cause the low level inter-cell interference to reduce the inter-cell interference,when it does not waste the resource.It outperforms good average cell throughput gain and cell-edge user throughput gain over the traditional downlink multicell MIMO system at the same situation.

关 键 词：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 

分 类 号：TN914[电子电信—通信与信息系统]