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Reservation Clash Handling to Optimize Bandwidth Utilization in MANETs

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3 Author(s)
Ghalem Boudour ; IRIT, Paul Sabatier Univ., Toulouse ; Cédric Teyssié ; Zoubir Mammeri

Multimedia and real-time applications require bandwidth guarantees, which may be achieved by resource reservation. However, resource reservation in ad-hoc networks is a very challenging task due to the instability of radio channels, nodes mobility and lack of coordination between mobile nodes. Previously proposed reservation MAC protocols like CATA, FPRP and R-CSMA have limitations. They consider that nodes are static and no mobility considerations are taken into account. In this paper, we propose a distributed reservation MAC protocol called Extended R-CSMA (ER-CSMA) to efficiently handle network topology changes due to nodes mobility. We achieved intensive simulations using the NS simulator to evaluate the effectiveness of our protocol. Performance evaluations show that our protocol outperforms the other protocols in terms of throughput and dropping rate.

Published in:

Communication Theory, Reliability, and Quality of Service, 2008. CTRQ '08. International Conference on

Date of Conference:

June 29 2008-July 5 2008