cr2081 - Mobile IP and Cellular IP Integration for Inter...

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Mobile IP and Cellular IP Integration for Inter Access Networks Handoff Marco Carli*, Alessandro Neri*, Andrea Rem Picci** *University of “Roma Tre”, Via della vasca navale, 84, 00146 Rome, Italy **Lucent Technologies Italia S.p.A., Via C. G. Viola, 00148 Rome, Italy [email protected] , [email protected] , [email protected] &±²üûœøü In this contribution two solutions for the management of cellular intranet, based on the Mobile IP and Cellular IP protocols integration are investigated. The first solution adopts a centralized architecture build over the gateway and the home agent. It is most suited for security needs and client/server traffic. The second solution utilizes the mobile IP with routing optimization for macro mobility management. It offers optimized routing, speeds-up the handoff procedures, supports real time traffic and is therefore oriented toward the Quality of Service. I. INTRODUCTION The Internet Protocol (IP) represents today’s standard in internet networking. Moreover, the IP technology has recently been improved with the introduction of new services such as Voice over IP (VoIP) and best effort/QoS enhancements which represent key features of wireless networks. Thus, the ability to handle data and voice services in an integrated form as well as the possibility of employing the same protocol when accessing the system through a wired or a wireless subnetwork, make extremely attractive solutions based on extensions of the standard IP protocol, for mobility management in third generation cellular systems [1]-[3]. In essence, the objective is to dispose of a whole set of efficient mobility management features at the IP layer (Network). This will make the access network nearly- independent from radio interfaces access. Only the base stations (BS) will be connected by radio-link (layer 2 and lower) with the mobile station (MS). To obtain such an integration, the first step is the management of a Cellular Intranet, i.e., a subnets system able to supply a coverage to a mobile host similar to the one presently available in cellular systems (GSM, DCS, and PCS). The overall system must be able to manage the handoff between cells within the same access network as well as between different access networks. As already specified by the Internet Engineering Task Force (IETF), the reference network architecture is based on access domains, representing different sub networks, managed by the Mobile IP protocol [4]. This architecture is based on the concept that most of the mobility can be managed locally within one domain without loading the core network [4]-[11]. In this paper an infrastructure for an IP wireless network for the cellular internet, see fig. 1, is proposed. This architecture uses the standard Internet for the core network. The Mobile IP (MIP) is used as an inter-subnet mobility protocol for macro-mobility management; while Cellular IP (CIP) is employed for the intra subnet mobility as support to the micro-mobility and paging management (see [12]-[20]).
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This note was uploaded on 02/04/2012 for the course COMPUTER 101 taught by Professor Ahmed during the Spring '11 term at alamo.edu.

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cr2081 - Mobile IP and Cellular IP Integration for Inter...

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