QoS support for VoIP traffic to prepare emergency

Masaaki Noro, Takahiro Kikuchi, Ken Ichi Baba, Hideki Sunahara, Shinji Shimojo

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Emergency communication support on the Internet is an important task. In the event of an emergency, such as a disaster, accepting as many VoIP calls as possible in limited bandwidth is an important requirement. Another important requirement is providing high quality service for important communications (ex. 911 services in the US). But, for non-emergency communication, the number of sessions (calls) that can be supported is much more important than the quality of each session. SIP supports various kinds of media; not only voice but also video can be used. In a multimedia session, it is not necessary to guarantee quality of all media for normal communications in an emergency situation. So, packets that contain video data or high quality voice data can be dropped in a very congested network. Diffserv AF service is suitable to realize this kind of quality policy. We propose a scheme which provides high quality service for important VoIP communication sessions and minimum quality for normal sessions using Diffserv AF service and a call admission method based on observing VoIP flow information anda log of SIP messages.

本文言語English
ホスト出版物のタイトルProceedings - 2004 International Symposium on Applications and the Internet Workshops (Saint 2004Workshops)
ページ229-235
ページ数7
出版ステータスPublished - 2004 6月 14
外部発表はい
イベントProceedings - 2004 International Symposium on Applications and the Internet Workshops (Saint 2004Workshop) - Tokyo, Japan
継続期間: 2004 1月 262004 1月 30

出版物シリーズ

名前Proceedings - International Symposium on Applications and the Internet Workshops

Other

OtherProceedings - 2004 International Symposium on Applications and the Internet Workshops (Saint 2004Workshop)
国/地域Japan
CityTokyo
Period04/1/2604/1/30

ASJC Scopus subject areas

  • 工学(全般)

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