| 无线流媒体应用中端系统切换触发机制和AP选择策略的研究与实现 |
| |
| 引用本文： | 吴强,徐伟,倪维国,夏勤,陶军.无线流媒体应用中端系统切换触发机制和AP选择策略的研究与实现[J].东南大学学报(自然科学版),2009,39(1). |
| |
| 作者姓名： | 吴强 徐伟 倪维国 夏勤 陶军 |
| |
| 作者单位： | 1. 东南大学计算机科学与工程学院,南京,210096
2. 东南大学计算机网络与信息集成教育部重点实验室,南京,210096 |
| |
| 基金项目： | 国家自然科学基金重大项目，国家自然科学基金 |
| |
| 摘 要： | 对无线局域网(WLAN)中节点(Station)切换过程进行了研究,提出了一种适合流媒体应用的端系统快速切换解决方案.该方案在3个方面进行了改进:通过设置动态切换阈值避免节点的频繁切换;使用平滑因子降低无线信号强度的时变不确定性;利用探询时延选择合适的接入点(AP).该方案无需对现有AP进行修改,具有较强的可扩展性能.在实际WLAN环境下进行了实现和测试分析,表明该方案能有效地减小切换时延,改善了流媒体在WLAN中的应用.
|
| 关 键 词： | 流媒体 无线局域网 切换触发 AP选择 |
Handoff trigger mechanism and AP selection strategy based on wireless streaming media applications in end systems |
| |
| Wu Qiang,Xu Wei,Ni Weiguo,Xia Qin,Tao Jun.Handoff trigger mechanism and AP selection strategy based on wireless streaming media applications in end systems[J].Journal of Southeast University(Natural Science Edition),2009,39(1). |
| |
| Authors: | Wu Qiang Xu Wei Ni Weiguo Xia Qin Tao Jun |
| |
| Institution: | School of Computer Science and Engineering;Southeast University;Nanjing 210096;China;Key Laboratory of Computer Network and Information Integration of Ministry of Education;China |
| |
| Abstract: | The handoff process of station in WLAN(wireless local area network) has been investigated and a streaming media application oriented fast handoff solution is proposed.Its improvements cover three aspects: based on dynamic threshold adjustment frequent handoffs are avoided,a smoothing factor is introduced to reduce the time-varying uncertainty of wireless signal strength,and an appropriate AP(access point) is selected based on probed delay.The solution has a good extensibility without any change to current A... |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
