北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2016, Vol. 39 ›› Issue (5): 11-15.doi: 10.13190/j.jbupt.2016.05.003

• 论文 • 上一篇    下一篇

收发信机射频损伤的UDN协同波束形成

方正1, 黎海涛2, 朱广2, 李艳2   

  1. 1. 航空电子系统综合技术重点实验室, 上海 200241;
    2. 北京工业大学 电子信息与控制工程, 北京 100124
  • 收稿日期:2015-01-01 出版日期:2016-10-28 发布日期:2016-12-02
  • 作者简介:方正(1983-),男,高级工程师;黎海涛(1972-),男,副教授,E-mail:lihaitao@bjut.edu.cn.
  • 基金资助:
    航空电子系统综合技术重点实验室和航空科学基金联合资助项目(2013ZC15003)

UDN Coordination Beamforming with Transceiver Radio Frequency Impairments

FANG Zheng1, LI Hai-tao2, ZHU Guang2, LI Yan2   

  1. 1. Science and Technology on Avionics Integration Laboratory, Shanghai 200241, China;
    2. College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
  • Received:2015-01-01 Online:2016-10-28 Published:2016-12-02

摘要: 为了进一步提高超密集无线网络(UDN)性能,提出一种同时考虑收发信机射频损伤的协同波束形成方法.首先,建立了包含射频损伤的UDN协同波束形成模型,并利用凸优化方法求解得到其最优解;然后,针对此最优解的结构特征,结合其在实际系统中难以实现的局限,设计了由信号泄漏噪声比波束形成导向矢量和最优功率分配构成的线性次优波束形成器.仿真结果表明,收发信机射频损伤的协同波束形成器能有效降低干扰,并且可提高UDN的系统容量.

关键词: 协同波束形成, 和速率, 射频损伤, 凸优化

Abstract: The coordination beamforming scheme with transceiver radio frequency impairments was proposed to improve the performance of ultra-dense wireless network (UDN). Firstly, the coordination beamforming model based on the residual radio frequency impairments is presented, and the convex optimization algorithm is utilized to achieve the optimal solution. Then, considering the limitations of the implementation of the optimal beamformer, the signal leakage noise ratio based the linear suboptimal beamformer is designed by beamforming steering vector and optimal power allocation. Simulations show that the proposed suboptimal beamformer with radio frequency impairments can effectively reduce interference and improve the sum rate of UDN.

Key words: coordination beamforming, sum rate, radio frequency impairments, convex optimization

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