TD-HSPA+ MU-MIMO 调制编码方式选择

北京邮电大学学报 ›› 2010, Vol. 33 ›› Issue (3): 93-96.doi: 10.13190/jbupt.201003.93.zhangx

张翔彭木根王文博陈书平

收稿日期:2009-08-15 修回日期:2009-12-31 出版日期:2010-06-28 发布日期:2010-05-14
通讯作者: 张翔 E-mail:zhangxiang2468@gmail.com
基金资助:
国家高技术研究发展计划项目（2009AA01Z244）；国家科技重大专项项目（2009ZX03001-004）；北京邮电大学优秀博士生创新基金项目(CX200903)

ZHANG Xiang， PENG Mu-gen, WANG Wen-bo, CHEN Shu-ping

(Key Laboratory of Universal Wireless Communication (Beijng University of Posts and Telecommunications,
Ministry of Education， Beijing 100876， China)

Received:2009-08-15 Revised:2009-12-31 Online:2010-06-28 Published:2010-05-14

摘要：

在下行多用户多输入多输出(MUMIMO)场景下，针对时分双工增强高速分组接入系统的调制编码

方式(MCS)选择不准确的问题，提出了一种综合考虑多用户干扰和信道时变特性的调制编码

方式选择算法. 通过调度用户前次上行传输的信道估计，对用户反馈的信道质量指示(CQI)进行调

整，再进行调制编码方式选择. 该算法不需增加信令开销，基站运算复杂度低. 仿真结果表

明，在用户间干扰比较严重时，算法系统性能增益明显. 

关键词: 多用户多输入多输出, 调制编码方式, 用户间干扰, 信道衰落

Abstract:

For the downlink multiuser multiple input multiple output (MU-MIMO) scenario, in order to

improve the accuracy of modulation and coding scheme (MCS) in time division high speed

packet access plus system, an enhanced MCS selection algorithm is presented. By taking

account of the channel estimation for the last uplink transmission, a appropriate MCS is

selected after adjusting the feedback channel quality indicator (CQI). This algorithm takes

advantages of no additional controlling signaling and low computational complexity. Simulation

shows that significant performance enhancement can be achieved by this algorithm when UE

experiences severe inter-user interference.

Key words: multi-user multiple input multiple output, modulation and coding schemes, inter-user inter-ference, channel fading

张翔彭木根王文博陈书平. TD-HSPA+ MU-MIMO 调制编码方式选择[J]. 北京邮电大学学报, 2010, 33(3): 93-96.

ZHANG Xiang， PENG Mu-gen, WANG Wen-bo, CHEN Shu-ping.

A New Selection Algorithm for Modulation and Coding 

Scheme in TD-HSPA+ MU-MIMO System [J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2010, 33(3): 93-96.

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[2]	高向川,李立华，张平，宋磊，王朝炜. GEVD辅助的MMSE干扰抑制下行多用户MIMO系统[J]. 北京邮电大学学报, 2011, 34(1): 85-89.
[3]	张健,刘元安,谢刚,毛峻岭. 多用户MIMO下行系统迭代迫零预编码[J]. 北京邮电大学学报, 2010, 33(4): 102-105.
[4]	冉静；李立华；靳进；张平；刘泽民. 利用HARQ多用户MIMO系统的自适应反馈方法[J]. 北京邮电大学学报, 2010, 33(1): 111-114.
[5]	王绪振贺志强牛凯于光玮吴伟陵. 鲁棒线性预测编码器设计[J]. 北京邮电大学学报, 2009, 32(4): 117-121.

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