SIP Based End-to-End QoS Negotiation Scheme for MIH

In this paper, we propose SIP-based internetworking scheme between IEEE 802.11e and IEEE 802.16 with MIH functionality. When the vertical handover occurs in the direction from IEEE 802.16 to IEEE 802.11e, the initial QoS may not always be supported due to available network resource shortage, which is caused by different media transmission rates. In this case, negotiation of the traffic flow for the application should be performed by the signaling mechanism. Renegotiation for QoS session setup also should be performed, because mobile node moves to a new access network, which may have different QoS provisioning scheme. To provide above-mentioned functions, we propose the integration scheme between SIP and MIH. SIP can handle not only multimedia sessions, but also end-to-end QoS setup for each multimedia session. Our integration scheme is demonstrated on the example of the handover between IEEE 802.11e and IEEE 802.16.