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Title: Service Discovery and Use in PersonalNetworks
Author: Ghader, Majid
Awarding Body: University of Surrey
Current Institution: University of Surrey
Date of Award: 2008
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Personal and Body Area Networks (PAN/BAN) are spontaneously. formed through the participation of a number of devices, using wireless technologies. They are considered to be components oflarger Personal Networks (PN), which include clusters formed at a user's points of interest. In such a dynamic environment, a Service Discovery (SD) process is required for the detection of participating devices and their offered services and capabilities. In the course of this research, SD requirements in wireless personal networks were identified and the suitability of some ofthe existing protocols was investigated. Contributions ofthe research are listed below.1) New PN Service Discovery and Management Platform (pNSDP & PNSMP): This is a generic platform that considers the characteristics of PNs, and is inter-operable with BIuetooth Service Discovery Protocol (SDP), Simple Service Discovery Protocol (SSDP) of Universal Plug and Play (UPnP) an4 Service Location Protocol (SLP). Furthermore, a new solution for enabling IP Multimedia Subsystem (IMS) and Service Session Management in PNs was proposed. 2) Optimised structure for PNSDP: An analytical evaluation was performed to aid in the proposal of the optimised structure for PNSDP. The results suggest that the most appropriate solutions are registry-based discovery within the clusters, peer-to-peer discovery in the infrastructure network, and the use ofthe binary format for SD messaging.3) Interoperability between SD legacy protocols within PNSDP: The results of an experimental evaluation of the performance of the BIuetooth SDP suggest that it is better to use the search operation instead of the browse. In ad hoc networks, the SD time and the success rate (SR) ofthe SSDP were evaluated (through computing simulations) employing different levels and types of background traffics, showing the non-sensitivity of the SD time to congestion. A new (single- and multi-PAN) mobility model was proposed and the SLP was evaluated in terms of the SR, SD time and cost. One ofthe important results in using registry-based SLP was the increasing ofthe SR by -60% at ~n energy cost increase of-25% in the multi-PAN case.
Supervisor: Not available Sponsor: Not available
Qualification Name: Not available Qualification Level: Doctoral
EThOS ID:  DOI: Not available