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Title: A scalable mutual exclusion algorithm for mobile ad hoc networks
Authors: Wu, W
Cao, J 
Yang, J
Keywords: Algorithm
Distributed computing
Mobile ad hoc network
Mobile computing
Mutual exclusion
Issue Date: 2005
Publisher: IEEE
Source: ICCCN 2005 : 14th International Conference on Computer Communications and Networks : 17-19 October 2005, San Diego, California USA : proceedings, p. 165-170 How to cite?
Abstract: Mobile ad hoc networks (MANETs) introduce new challenges to designing algorithms for solving the distributed mutual exclusion (MUTEX) problem. In this paper we propose the first permission-based MUTEX algorithm for MANETs. In order to reduce the messages cost, the algorithm uses the so called "look-ahead" technique, which enforces MUTEX only among the hosts currently competing for the critical section (CS). We propose mechanisms to handle the "doze" mode and "disconnection" of mobile hosts. The constraint of FIFO channel, which is not feasible in MANETs, is also relaxed. Using timeout, a fault tolerance mechanism is introduced to tolerate transient link and host failures. The simulation results show that the proposed algorithm works well under various mobility levels, load levels and system scales, especially when the mobility is high or load level is low. It is also shown that the algorithm has good scalability, especially when most of the requests come from a few active hosts.
ISBN: 0-7803-9428-3
Rights: © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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