摘要
群小区的概念是基于多天线系统构架、针对蜂窝组网结构在小区面积减小时会导致的频繁切换问题而提出的。为了分析群小区架构的规模即所包括小区天线数目的最优化选择问题,首先以平均接收功率为标准建立了一个代价模型,通过求解分析给出了群小区规模大小的选择准则;然后分别以平均接收功率或平均接收信干比为衡量准则,并且增加了一个中断概率衡量指标,通过仿真分析给出了群小区规模大小的选择准则。最后根据分析结果,针对移动通信系统不同的性能指标要求,给出了群小区规模大小的最优化选择结果。
Group cell, generalized distributed cellular architecture for china beyond 3G mobile communication systems, was proposed to increase coverage area, adopt new techniques and solve the frequent handover problem with increase of carrier frequency. In order to analyze the optimal size selection for group cell, namely the number of cell antennas in a cell group, the power cost model is firstly set up to give the criterion of selection. Then average received power and average received signal to interference ratio are respectively taken as the criteria, including outage probability. Finally, the optimal size selection for group cell is given due to the three pieces of criteria. Based on the simulation and analysis, the optimal size selection criteria are applicable to certain generalized distributed cellular architecture with different performance demands.
出处
《电信工程技术与标准化》
2009年第6期86-89,共4页
Telecom Engineering Technics and Standardization
关键词
群小区
功率代价
中断概率
group cell, power cost, outage probability
