IEEE 802.11e無線網路環境下的VoIP傳輸品質控管

Abstract

在無線網路環境下來支援網路電話的運行是近年來崛起的新服務。要來支援這樣的服務，SIP和IEEE802.11e是兩個很重要且有遠景的協定。在這個碩論裡面，我們提出了一個整合SIP和802.11e的架構來做網路資源管理，以達到網路電話在無線網路下的品質要求。此外，我們也提出了一些在IEEE802.11e網路擷取層上的改善方法，期許可以讓無線網路環境下的網路電話服務可以運行的更加順暢。

Supporting telephone services using wireless LAN as the access network is an emerging service. The SIP and IEEE 802.11e are perhaps the two most promising protocols to support such services. In this paper, we show how to integrate SIP and 802.11e to conduct call admission control and resource reservation to support VoIP's QoS in IEEE 802.11e WLANs. Besides, we also suggest some adjustments and MAC enhancements to 802.11e to facilitate VoIP traffics over WLANs.