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Dept Comp Sci & Comp Eng
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La Trobe University
Victoria 3086
AUSTRALIA
Tel: +61 3 9479 1107
Fax: +61 3 9479 3060
Email: info
@cs.latrobe.edu.au
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Seminars - Abstract
Department of Computer Science & Computer Engineering
| Topic: |
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QoS Topology Control and Energy Efficient Routing Ad Hoc Wireless Networks |
| Speaker: |
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Jia, Professor, Department of Computer Science, City University of Hong Kong |
| Date: |
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22-06-2004 |
| Time: |
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3:00 PM
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| Venue: |
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ELT 6 |
| Abstract: |
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An ad hoc wireless network is a special type of wireless networks that does not have a wired infrastructure to support communication among the wireless nodes. Each node acts as a router, as well as a communication end-point. The topology of an ad hoc network is dynamic and under constant changes due to the mobility of the nodes, which makes the upper layer routing operations extremely difficult. Topology control is to allow each node in the network to adjust its transmitting power (i.e., to determine its neighbours) so that a good network topology can be formed. Energy efficiency is an important issue in the design of ad hoc networks, because mobile nodes are usually powered by batteries. In this seminar, we will discuss two issues:
1) QoS topology control. Given a set of wireless nodes in a plane and QoS requirements between node pairs, our goal is to find a network topology that can meet the QoS requirements and the energy cost of forming such topology is minimal.
2) Energy efficient broadcast / multicast routing. Given a wireless network, our goal is to find a routing tree that is rooted from a source and spans a set of destinations, and the energy cost of the tree is minimal.
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