CSSE Seminar Series (CSSESS)
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Seminar
Virtual Circuit Switching Concept in Ad-Hoc Networking.
Speaker: Yen-Rong Sun (alias "Dan"), Graduate Student.
Institute: Dept. of Computer Science, University of Canterbury.
Time/Place: 10:25 AM, Wed, 19 Nov, in Room 031, Erskine Building.
Abstract
This thesis investigates issues of implementing virtual circuit switching in an ad--hoc network. Traditionally, an ad--hoc network uses datagram switching for transmitting a message which is many packets long. Two main challenges for implementing virtual circuit switching in an ad--hoc network are: (1) finding a medium access control (MAC) protocol that supports "virtual circuit" and (2) dealing with the rapid changes of network topology. A major advantage of using virtual circuit switching is its capability to provide Quality of Service during a communication session.
Ad--hoc Virtual Switching Routing (AVSR) protocol is a cross-layered traffic control protocol developed to demonstrate virtual circuit switching in an ad--hoc network. It is a reactive routing protocol running over a self--administrative Time Division Multiple Access (TDMA) MAC protocol. The evaluation of AVSR shows it is applicable to implement virtual circuit switching in an ad--hoc network, however its performance degrades significantly as the number of nodes/terminals in the network increases. The conclusion of this thesis gives recommendations for future researches of virtual circuit switching in an ad--hoc network.
Biography
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