1.USER MOBILITY PATTERN BASED RSVP SCHEME FOR WIRELESS MPLS NETWORKS  Ismail BUDANUR, 2003

The Internet users’ demand is explosively growing especially for the real-time multimedia applications. The best-effort service model of the Internet is inadequate to support multimedia service requests. Various approaches have been introduced by IETF to support end-to-end quality of service (QoS. The integrated services architecture was developed to provide QoS for real time applications but it creates additional signaling traffic in the backbone. Differentiated services was proposed to reduce signaling cost as well as to enable scalable services in the Internet [7]. multiprotocol label switching (MPLS) [11] provides traffic engineering (TE), QoS, differentiated services, and supports integrated services. Thus it leverages both the advantages of the integrated and differentiated services architectures.

In this thesis We propose a new user mobility pattern based RSVP scheme for wireless cellular systems where the user mobility pattern based registration and paging (UMP) technique is used for location management. In the UMP technique a mobile registers a mobility pattern made up of the cells to be visited and the expected cell entry times. Since not only the next cell but also the cell entry time can be predicted by using a UMP, we can create a new label switched path (LSP) for the new cell before a handoff occurs. This makes MPLS more powerful and more reliable for QoS requirements of mobile terminals. The simulation results show that our scheme reduces the call termination rate 80 % in the average in the expense of slightly increased call blocking rates.