60GHz室内天线位置优化与天线选择策略  

On Separation Optimization and Antenna Selection of 60GHz In-building Antenna System

作　　者：周游[1] 胡宗福[1] 曾鸣[1] 李昕[1] 

机构地区：[1]同济大学电子与信息工程学院,上海201804

出　　处：《通信技术》2012年第10期1-5,共5页Communications Technology

基　　金：国家自然科学基金(批准号:60972002)

摘　　要：采用多天线技术的60 GHz无线通信被认为是未来室内场景下高数据率宽带无线接入一种有前途的解决方案。参考802.11ad工作小组采用的60 GHz信道模型,根据60 GHz路径损耗公式提出的分布式天线系统间距的优化方案可以保证房间内功率覆盖的均匀性。在此基础上,进一步分析60 GHz多天线系统在不同链路条件下的信道条件数关系,提出一种基于信道条件数的天线选择策略。该策略利用信道条件数判断信道性能,既保证了通信质量,又适时降低系统总功率,切换简单、易于操作,适用于60 GHz室内无线通信。60GHz wrreless communication using multi-antenna system is a promising solution for future in-building high data rate access network. In accordance with the 60GHz channel models adoped by IEEE 802. llad Task Group, an optimizing scheme of antenna separation distance is proposed for the balance of power distribution in the room. In addition, based on analysis of the condition numbers under different channel state, a condition number-based antenna selection strategy is proposed. As a threshold-handover strategy, it considers both transmit power and BER performance. Easy operation makes it suitable for 60GHzln-building wireless communication.

关 键 词：60 GHz毫米波 天线选择 分布式天线系统 光纤无线电 

分 类 号：TN929.5[电子电信—通信与信息系统]