一种蓝牙网络接入点快速切换机制  

A Fast Handoff Mechanism for Bluetooth Network Access Points

作　　者：林鸿[1] 丁文芳[2] 高强[1] 

机构地区：[1]中国科学院软件研究所,北京100080 [2]北京科学技术大学计算机科学系,北京100083

出　　处：《计算机研究与发展》2003年第10期1458-1463,共6页Journal of Computer Research and Development

基　　金：国家自然科学基金重点项目 ( 6983 3 0 3 0 )

摘　　要：蓝牙网络接入点切换问题是蓝牙技术广泛应用过程中亟待解决的关键课题 ,而蓝牙本身特点给接入点快速切换研究和实现带来挑战 提出了一种新的由接入点控制的反向软切换机制 ,实现了蓝牙接入点快速切换 接入点实时监测同移动点间的链路 ,根据距离和链路质量计算出切换判断值 当这个值超过某个阈值后 ,接入点预先在它的邻近接入点中搜索一个最佳候选接入点 当值继续超过另一个阈值后 ,移动点切换到新接入点 虚拟切换环境的仿真结果说明 。The handoff for Bluetooth network access points is a critical issue before Bluetooth technology is applied widely The special characteristics of Bluetooth technology present great challenges in studying and implementing fast handoff of access points Presented in this paper is an innovative backward soft handoff mechanism controlled by access point to realize fast handover The access point supervises the link between itself and the mobile point in real time and calculates the value to determine handover according to the distance and the link quality While the value is more than one threshold, the access point searches in advance for the optimal candidate from its neighborhood While the value continues to surmount another threshold, the mobile point is switched to a new access point Deducing from the simulations of the virtual handoff scenarios, it validates that the scheme finishes the handoff procedure in a very short time

关 键 词：蓝牙 网络接入点 快速切换 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]