| 毫米波通信系统中利用随机逼近的波束赋形算法 |
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| 引用本文： | 董可,廖学文,朱世华.毫米波通信系统中利用随机逼近的波束赋形算法[J].西安交通大学学报,2011,45(10):72-76. |
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| 作者姓名： | 董可 廖学文 朱世华 |
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| 作者单位： | 西安交通大学电子与信息工程学院,710049,西安 |
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| 基金项目： | 国家科技重大专项资助项目(2009ZX03003-008-02,2011ZX03003-002-03); 国家自然科学基金资助项目(60902043); 国际科技合作项目(S2010GR0902) |
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| 摘 要： | 为了在60 GHz毫米波通信系统中确定收发机最优的窄波束方向使得传输速率最大,提出了一种基于波束码本的自适应波束赋形算法.该算法在室内60 GHz信道的射线跟踪模型基础上建立了离散优化问题,并引入随机逼近的全局优化算法进行求解,首先在窄波束空间中进行随机采样,再利用含噪的信道估计获得样本目标函数的无偏估计量,并据此执行...
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| 关 键 词： | 毫米波 通信系统 智能天线 波束赋形 随机逼近 自适应 |
Beam-Forming in Millimeter-Wave Radio System via Stochastic Approximation |
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| DONG Ke,LIAO Xuewen,ZHU Shihua.Beam-Forming in Millimeter-Wave Radio System via Stochastic Approximation[J].Journal of Xi'an Jiaotong University,2011,45(10):72-76. |
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| Authors: | DONG Ke LIAO Xuewen ZHU Shihua |
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| Institution: | DONG Ke,LIAO Xuewen,ZHU Shihua (School of Electronics and Information Engineering,Xi'an Jiaotong University,Xi'an 710049,China) |
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| Abstract: | An adaptive beam-forming algorithm is proposed based on beambook to determine the optimal beam directions for 60 GHz millimeter wave transceiver for a maximal transmission rate. Stochastic approximation algorithm is introduced to solve the discrete optimization problem that is established on the basis of the 60 GHz channel model in indoor environment by ray tracing technique. The search space spanned by the narrow beams is randomly sampled and an unbiased estimate to the objective function for each sample i... |
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| Keywords: | millimeter wave communication system smart antenna beamforming stochastic approximation adaptive |
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