毫米波通信系统中利用随机逼近的波束赋形算法

董可; 廖学文; 朱世华

您当前的位置：

首页 >

文章列表页 >

毫米波通信系统中利用随机逼近的波束赋形算法

更新时间：2025-07-09

- 毫米波通信系统中利用随机逼近的波束赋形算法
- Beam-Forming in Millimeter-Wave Radio System via Stochastic Approximation
- 西安交通大学学报 2011年45卷第10期页码：72-76
- 作者机构：
  
  西安交通大学电子与信息工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2011-04-20. 作者简介: 董可(1983-),男,博士生;朱世华(联系人),男,教授,博士生导师. 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)
- DOI：
  中图分类号： TN929.5
- 网络首发：2011-10-10，
  
  纸质出版：2011
- 稿件说明：
移动端阅览
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.

Beam-Forming in Millimeter-Wave Radio System via Stochastic Approximation[J]. 2011, 45(10): 72-76.
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. DOI：

Beam-Forming in Millimeter-Wave Radio System via Stochastic Approximation[J]. 2011, 45(10): 72-76. DOI：

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

并据此执行自适应迭代更新

最终找到波束码本中最优的收发波束方向.相对于已有的波束赋形算法

该算法不要求收发机兼容多种宽度的天线方向图

无需精确的信道估计

且运算效率更高

适用性更强.仿真实验表明

在搜索空间规模较大时

该算法可以以相对较低的复杂度获得全局最优解或次优解

并能有效地缓解遮挡对链路产生的严重衰减

提高系统鲁棒性.

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 is acquired using the noisy channel estimates. Then

adaptive updates are performed recursively until the optimal solution is found from a well-designed beambook. Compared with existing beambook based beamforming algorithms

the proposed solution is more efficient in two aspects: low implementation complexity since neither the multiple beam patterns nor the exact channel state information is required; and high computational effectiveness due to the selective resource allocation mechanism. Simulation results show that a solution close to the global solution is achieved in a relatively small number of iterations

and the inevitable blockage impact in 60 GHz radio link is mitigated

which enhances the link robustness against obstructions.

关键词

Keywords

references

YONG S K, CHONG C C. An overview of multi-gigabit wireless through millimeter wave technology: potentials and technical challenges [J]. EURASIP Journal on Wireless Communication and Networking, 2007(1): 1-10.

王静, 杨旭, 莫亭亭. 60 GHz无线通信研究现状和发展趋势[J]. 信息技术, 2008(3):140-144.

WANG Jing, YANG Xu, MO Tingting. Status and development of 60 GHz wireless communications[J]. Information Technology, 2008(3):140-144.

SINGH S, ZILIOTTO F, MADHOW U, et al. Blockage and directivity in 60 GHz wireless personal area networks: from cross-layer model to multihop MAC design [J]. IEEE Journal on Selected Areas in Communications, 2009, 27(8):1400-1413.

WANG Jing, PRASAD R V, PAWELCZAK P, et al. A link stability model for indoor 60 GHz radio wireless networks [C]∥Proceedings of IEEE 70th Vehicular Technology Conference. New York, USA: IEEE, 2009: 20-23.

KIM K J, BAE S J, KWAK K S. A new beamforming for 60 GHz wireless system with reduced feedback overhead [C]∥Proceedings of 9th International Symposium on Communications and Information Technology. Piscataway, NJ, USA: IEEE, 2009:1517-1521.

XIA Pengfei, YONG S K, OH J, et al. Multi-stage iterative antenna training for millimeter wave communications [C]∥Proceedings of Global Telecommunications Conference. New York, NY, USA: IEEE, 2008: 1-6.

LEE H H, KO Y C. Efficient codebook-based symbol-wise beamforming for millimeter-wave WPAN system[C]∥Proceedings of ACM International Workshop on Millimeter Wave Communications. New York, NY, USA: ACM, 2010: 21-26.

Institute of Electrical and Electronics Engineers. Draft Standard for IEEE 802.11ad [EB/OL]. [2010-06-01]. http:∥www.ieee802.org/11/TGad/Draft%20P802.11adD0.1.pdf.

Institute of Electrical and Electronics Engineers. IEEE 802.15 WPAN Millimeter Wave Alternative PHY[EB/OL]. [2009-12-04]. http:∥www.ieee802.org/15/pub/TG3c.html.

WANG Junyi, LAN Zhou, PYO C, et al. Beam codebook based beamforming protocol for multi-Gbps millimeter-wave WPAN systems [J]. IEEE Journal on Selected Areas in Communications, 2009, 27(8):1390-1399.

MALTSEY A, PERAHIA E, HANSEN C, et al. Channel models for 60 GHz WLAN systems [EB/OL]. [2010-05-20]. https:∥mentor.ieee.org/802.11/dcn/09/11-09-0334-08-00ad-channel-models-for-60-ghz-wlan-systems.doc.

ANDRADOTTIR S. A global search method for discrete stochastic optimization [J]. SIAM Journal on Optimization, 1996, 6(2): 513-530.

BERENGUER I, WANG Xiaodong, KRISHNAMURTHY V. Adaptive MIMO antenna selection via discrete stochastic optimization [J]. IEEE Transactions on Signal Processing, 2005, 53(11):4315-4329.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

面向智能驾驶的自适应多尺度三维点云配准网络

一种可演化网络的研究与实践

自适应移频变尺度随机共振在故障诊断中的应用

判断运动复杂度的快速运动估计算法

自适应折叠混沌优化方法