A cross-layer adaptive handoff algorithm in wireless multimedia environments

Tsungnan Lin*, Chiapin Wang

*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

摘要

Providing multimedia services in wireless networks is concerned about the performance of handoff algorithms because of the irretrievable property of real-time data delivery. To lessen unnecessary handoffs and handoff latencies which can cause media disruption perceived by users, we present in this paper a cross-layer handoff algorithm base on link quality. Neural networks are used to learn the cross-layer correlation between the link quality estimator such as packet success rate and the corresponding context metric indictors, e.g. the transmitting packet length, received signal strength, and signal to noise ratio. Based on a pre-processed learning of link quality profile, our approach makes handoff decisions intelligently and efficiently with the evaluations of link quality instead of the comparisons between relative signal strength. The experiment and simulation results show that the proposed method outperforms RSS-based handoff algorithms in a transmission scenario of VoIP applications.

原文英語
主出版物標題Applications of Digital Image Processing XXX
DOIs
出版狀態已發佈 - 2007
對外發佈
事件Applications of Digital Image Processing XXX - San Diego, CA, 美国
持續時間: 2007 八月 282007 八月 30

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
6696
ISSN(列印)0277-786X

其他

其他Applications of Digital Image Processing XXX
國家/地區美国
城市San Diego, CA
期間2007/08/282007/08/30

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

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