摘要
切换是移动网络最重要的技术之一,直接影响着通信系统的整体性能。研究了IEEE 802.16e系统基于CINR(Carrier to Interference+Noise Ratio,载波干扰噪声比)的软切换机制,提出绝对门限和相对门限相结合的软切换触发和判决算法。通过仿真研究了各参数对平均切换次数、切换损耗概率和网络资源利用率的影响,并在这些系统性能之间寻求折中。
The handover algorithms employed in a wireless mobile network have a significant impact on overall network performance.A soft handover algorithm is developed based on Carrier to Interference + Noise Ratio(CINR) for IEEE 802.16e system with both absolute threshold and relative threshold.System performances such as average number of handovers,handover outage probability and network resource utilization are studied by computer simulation.
出处
《计算机工程与应用》
CSCD
北大核心
2010年第17期113-116,共4页
Computer Engineering and Applications
基金
浙江省教育厅高校科研计划项目(No.20070364)
关键词
IEEE
802.16e
载波干扰噪声比
服务质量
快速基站转换
宏分集切换
软切换
IEEE 802.16e
Carrier to Interference + Noise Ratio(CINR)
quality of service
Fast Base Station Switching(FBSS)
Macro-Diversity Handof(fMDHO)
soft handoff