| WLAN环境下移动点切换时机选择算法 |
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| 引用本文： | 陈兵,王寿国,钱红燕.WLAN环境下移动点切换时机选择算法[J].电子科技大学学报(社会科学版),2009(2). |
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| 作者姓名： | 陈兵 王寿国 钱红燕 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院; |
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| 摘 要： | 大型无线局域网环境中移动点在不同AP间进行高速移动时需要进行切换,切换过程产生的延迟会影响无线局域网的服务质量,尤其对于多媒体应用,减小移动点在AP之间的切换延迟是提高无线局域网服务质量的关键。该文提出了确定下一个AP的确认、认证与连接过程开始的最佳距离和最佳接收信号强度的算法,算法结合移动点的移动速度、移动偏移角度等因素来确定最佳切换时机,提高切换成功率,减少切换延迟。算法已在地铁信号系统国产化预研项目中得到应用。
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| 关 键 词： | 移动点 服务质量 接收信号强度 无线局域网 |
Handoff Decision Algorithm for Mobile Node in WLAN |
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| CHEN Bing,WANG Shou-guo, QIAN Hong-yan.Handoff Decision Algorithm for Mobile Node in WLAN[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2009(2). |
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| Authors: | CHEN Bing WANG Shou-guo QIAN Hong-yan |
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| Institution: | Institute of Information Science and Technology;Nanjing University of Aeronautics and Astronautics Nanjing 210016 |
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| Abstract: | Handoff latency arisen in access points (APs) has become essential issue in wireless local area network (WLAN). The delay caused by handoff process affects the quality of service (QoS), such as real-time applications like VoIP. In order to resolve this problem, an improved fast handoff algorithm is proposed to confirm, authorize and connect the next AP. According to the moving speed and excursion angle, a threshold value of distance and received signal strength (RSS) is determined between mobile nodes (MNs)... |
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| Keywords: | mobile node quality of service received signal strength wireless local area network |
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