Enhancing QoS support for vertical handoffs using implicit/explicit handoff notifications

Ling Jyh Chen*, Guang Yang, Tony Sun, M. Y. Sanadidi, Mario Gerla

*此作品的通信作者

研究成果: 書貢獻/報告類型會議論文篇章

11 引文 斯高帕斯(Scopus)

摘要

Vertical handoffs between different wireless technologies usually lead to dramatic changes in the link capacity. A successful QoS solution for vertical handoffs must be able to fast track the capacity changes and agilely adapt the delivery rates and qualities of the ongoing applications. Though traditional AIMD-based source adaptation schemes (as found in TCP, TFRC, etc.) have been well designed for mild, gradual rate adjustments required by load fluctuations and network congestion, their response time is inadequate when the rate must be adjusted to the drastic network capacity changes that are typical in vertical handoff scenarios. To expedite the response to such changes, we propose in this paper two adaptive algorithms, named the Fast Rate Adaptation (FRA) and Early Rate Reduction (ERR), that are launched when the handoff is from low to high capacity (LOW-to-HIGH) or from high to low capacity (HIGH-to-LOW), respectively. We also propose two vertical handoff notification mechanisms to work with FRA and/or ERR, i.e. the Implicit Handoff Notification (IHN) and Explicit Handoff Notification (EHN). We show by simulation that our proposed schemes are able to provide better QoS support than the traditional AIMD based schemes during vertical handoffs.

原文英語
主出版物標題Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks, Qshine 2005
發行者IEEE Computer Society
頁面8-15
頁數8
ISBN(列印)0769524230, 9780769524238
DOIs
出版狀態已發佈 - 2005
事件2nd International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks, Qshine 2005 - Orlando,FL, 美国
持續時間: 2005 八月 222005 八月 23

出版系列

名字Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks, Qshine 2005
2005

其他

其他2nd International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks, Qshine 2005
國家/地區美国
城市Orlando,FL
期間2005/08/222005/08/23

ASJC Scopus subject areas

  • 工程 (全部)

指紋

深入研究「Enhancing QoS support for vertical handoffs using implicit/explicit handoff notifications」主題。共同形成了獨特的指紋。

引用此