MULTI-PATH ROUTING AND POWER CONTROL IN MOBILE AD HOC NETWORK.pdfVIP

CONGESTION AVOIDANCE USING MULTI- PATH ROUTING AND POWER CONTROL IN MOBILE AD HOC NETWORK by Peter Phuc Pham A Phd proposal submitted in partial fulfillment of the requirements for the degree of Ph.D. of Telecommunications University of South Australia March 28, 2002 Approved by ___________________________________________________ Chairperson of Supervisory Committee __________________________________________________ __________________________________________________ __________________________________________________ Date __________________________________________________________ UNIVERSITY OF SOUTH AUSTRALIA ABSTRACT MULTI-PATH ROUTING AND POWER CONTROL IN MOBILE AD HOC NETWORK By Peter Phuc Pham Chairperson of the Supervisory Committee: Dr Sylvie Perreau Institute for Telecommunications Research A mobile ad hoc network (MANET) is an autonomous system of mobile hosts connected by wireless links. There is no static infrastructure such as base stations. If two hosts are not within radio range, all communication messages between them must pass through one or more intermediate hosts that act as routers. These hosts move around randomly, thus change the network topology dynamically. Such networks are very useful in military and other tactical applications such as emergency rescue or exploration missions, where fixed network infrastructure is not available. Utilization of multi-path routing mechanism to provide improved throughput and route resilience as compared with single-path one has been explored in details in the context of wired network. However, multi-path routing has not been explored thoroughly in the domain of ad hoc network. Furthermore, due to broadcast nature of mobile nodes in MANET, hidden terminals and exposed terminals are well-known problems for significantly reducing the network capacity. Therefore, an efficient power control algorithm is needed to reduce interference and enhance netwo