An efficient channel scan scheduling algorithm for VoIP handoffs in WLANs

Jeng Ji Huang*, Yi Hsuan Chen, Sen Ching Chang, Huei Wen Ferng

*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

6 引文 斯高帕斯(Scopus)

摘要

To guarantee seamless handoffs between access points (APs) is one of the most decisive factors in providing realtime applications such as voice over internet protocol (VoIP) in IEEE 802.11 networks. It is because in wireless local area networks (WLANs) there is no specific control channel for executing a handoff process and a mobile station (MS) has to search for new APs from channel to channel by temporarily disconnecting its association with the old AP. While previous studies are mainly focused on how to reduce the handoff latency, in this paper a channel scanning algorithm is proposed to schedule suitable time for performing a handoff process efficiently. In the proposed algorithm, the voice activity is taken into consideration, and the handoff process is performed during silent periods. Extensive simulations are conducted to investigate the performance of the proposed algorithm in terms of the handoff success probability and the packet loss rate, and the results obtained in this paper can serve as a good reference for the system design.

原文英語
主出版物標題2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
頁面1340-1344
頁數5
DOIs
出版狀態已發佈 - 2007
事件2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring - Dublin, 愛爾蘭
持續時間: 2007 四月 222007 四月 25

出版系列

名字IEEE Vehicular Technology Conference
ISSN(列印)1550-2252

其他

其他2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
國家/地區愛爾蘭
城市Dublin
期間2007/04/222007/04/25

ASJC Scopus subject areas

  • 電腦科學應用
  • 電氣與電子工程
  • 應用數學

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