基于实际城区场景的TD-LTE异构网络性能研究  

Research on TD-LTE Heterogeneous Network Performance in a Realistic Metropolitan Scenario

作　　者：祝炜凯[1,2] 赵竹岩[2] 康剑锋[2] 谈振辉[1] 

机构地区：[1]北京交通大学宽带无线移动通信研究所,北京100044 [2]诺基亚西门子通信技术(北京)有限公司,北京100007

出　　处：《电信科学》2012年第9期47-51,共5页Telecommunications Science

基　　金：国际科技合作计划子课题"未来宽带无线接入关键技术研究"基金资助项目(No.2010DFB10410);国家自然科学基金资助项目(No.61071075)

摘　　要：本文对密集城区环境下的实际TD-LTE网络部署进行了研究。通过系统级仿真对宏小区/微小区、宏小区/家庭基站小区、宏小区/微小区/家庭基站小区3种异构网络的下行系统性能进行研究,并与单一宏小区的网络部署场景进行了比较。对实际城区环境下的信号传播损耗模型和用户分布进行了三维空间建模。通过比较4种不同TD-LTE网络部署方案下,位于不同楼层高度室内用户的性能,得出异构网络中不同小区(宏小区、微小区和家庭基站小区)的覆盖和容量特性。This article has a research on TD-LTE heterogeneous network deployment in a realistic metropolitan scenario. Through system-level simulation, the article studies the downlink system performance of three heterogeneous networks, which are macro cell/micro cell, macro cell/femto cell and macro cell/micro cell/femto cell, and has a comparison with macro cell＇s performance. meanwhile, models of three-dimensional signal propagation loss and user distribution have been built up. Results on different cell＇s （macro cell, micro cell, femto cell） coverage and capacity characteristics in heterogeneous network are come up with after we compare four different TD-LTE network＇s performance in different height.

关 键 词：异构网 宏小区 微小区 家庭基站小区 TD-LTE 

分 类 号：TN915.04[电子电信—通信与信息系统]