On Providing Flow Transparent Mobility Support for IPv6-based Wireless Real-time Services

With the natural convergence of wireless communications and Internet technology, mobile real-time services such as wireless mobile Internet telephony will be ubiquitous. Since the emerging Third Generation (3G) wireless networks will adopt Internet Protocol version 6 (IPv6), simultaneous Quality of Service (QoS) and mobility support in IPv6 is becoming an imperative need. The Internet Engineering Task Force (IETF) has developed ReSerVation Protocol (RSVP) and Mobile IPv6 to provide IPv6 QoS and mobility support, respectively. However, an integrated and e cient interworking of these two mechanisms is still not present. In this paper, we identify a problem with the existing RSVP and Mobile IPv6 interworking model and consequently de ne a Flow Transparency concept to solve this problem. We show that a ow transparent mobility scheme is essential in a desired IPv6 QoS with mobility support model. We examine this desired model and illustrate how it overcomes the problem with the existing approach and achieves a more e cient RSVP and Mobile IPv6 integration. Solutions to accomplish the desired model based on the existing infrastructure, as well as their implementation considerations, will also be presented.