An architecture for SDP-based bandwidth resource allocation with QoS for SIP in IEEE 802.16 networks

摘要

The IEEE 802.16 link-layer offers rich QoS primitives which make it an attractive transport for voice traffic. Yet, its QoS capabilities are disjoint from the application layer protocols, such as SIP. This paper presents a new approach with a demonstrator on merging 802.16 QoS with SIP with bandwidth allocation capabilities based on the Session Description Protocol's Provisional Response Acknowledgement (PRACK) method. It is henceforward suggested, that tying SIP with 802.16 MAC bandwidth management provides an effective means to transport voice traffic over this wireless access technology