| LTE-A中自适应多流波束赋形算法研究 |
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| 引用本文： | 于洪林,郭爱煌,肖法,罗巍.LTE-A中自适应多流波束赋形算法研究[J].通信技术,2011(11):91-93. |
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| 作者姓名： | 于洪林 郭爱煌 肖法 罗巍 |
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| 作者单位： | 同济大学电子与信息工程学院;毫米波国家重点实验室; |
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| 基金项目： | 毫米波国家重点实验室开放课题(No.K201009) |
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| 摘 要： | 多流波束赋形技术是LTE-Advanced中采用的多天线增强技术。采用单用户多流波束赋形技术,可以使得单个用户在某一时刻可以进行多个数据流传输,在提升系统性能上表现出极大优势。提出一种LTE-Advanced中下行单用户自适应多流波束赋形算法,基站端基于接收模型对下行链路容量进行预估计,在一定信噪比要求的条件下,以信道容量最大化准则选择波束赋形流数。仿真结果表明,自适应算法增加了波束赋形系统的灵活性,能够有效提高LTE-Advanced系统中下行链路性能。
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| 关 键 词： | 多流 波束赋形 自适应 先进长期演进 |
Adaptive Multi-Stream Beamforming Algorithm for LTE-A |
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| YU Hong-lin①,GUO Ai-huang①②,XIAO Fa①,LUO Wei.Adaptive Multi-Stream Beamforming Algorithm for LTE-A[J].Communications Technology,2011(11):91-93. |
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| Authors: | YU Hong-lin① GUO Ai-huang①② XIAO Fa① LUO Wei |
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| Institution: | ①(①College of Electronics and Information Engineering,Tongji University,Shanghai 201804,China; ②State Key Laboratory of Millimeter Waves,Nanjing Jiangsu 210096,China) |
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| Abstract: | Multi-stream beamforming is an enhanced technology in LTE-Advanced,and multi-stream beamforming for single-user could make one user transfer multiple data streams at the same time and exhibits great advantage in the improvement of system performance.This paper presents an adaptive multi-stream beamforming algorithm for single-user downlink in LTE-Advanced.The base station builds the receiver model,and then selects the number of beamforming streams based on pre-estimation of the downlink capacity.The simulat... |
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| Keywords: | multi-stream beamforming adaptive LTE-A |
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