文章基本信息

标题：IMPROVED AODV ROUTING PROTOCOL BASED ON THE ENERGY MODEL
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作者：ABDESLAM EL FERGOUGUI ; ABDELLAH JAMALI ; NAJIB NAJA 等
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2015
卷号：76
期号：3
出版社：Journal of Theoretical and Applied
摘要：The QoS routing generates a significant number of control messages (overhead), which are necessary for the discovery and maintenance of routes. Indeed, the nodes must establish a mechanism to store and update the link-state in a mobile environment. This mobility in ad-hoc environment makes maintaining the link-state very difficult and costly. In addition to node mobility, lack of energy can cause breaks in the established paths, the protocol must be able to react quickly to such event by recalculating valid routes. In this paper we propose a management approach of routing based on one of the largest existing reactive routing protocols which is AODV, and able to minimize routing messages (overhead) in contexts with strong constraints. This approach takes into account a metric based on energy consumption during the route discovery, in order to increase the lifetime of the network, and also allows such applications to consider, when resources are lacking, the maintenance of QoS connections of users with the highest priority. The traditional mechanisms based on AODV aim to use parameters TTL ART,. . . for reduction of routing messages in the phase of route discovery and maintenance phase. However, it is conceivable that in certain application environments do not challenge these parameters for the overhead reduction, and to consider management rested on a policy of distribution of RREQ messages between mobile nodes, based on the energy level residual of each node, which allows more to extend the lifetime of the network for applications sensitive to energy use. This paper is structured in four sections. The first section provides a brief presentation on the reactive protocol AODV. The second section consists of a depth classification of the main algorithms that have influenced us, for reflection on the overhead reduction. As specified by the traditional approaches, we propose a modification of this management and we introduce this modification to the AODV protocol. The third section concerns the presentation of the proposed algorithm. The fourth section lies within the validation of our approach by simulations that we perform in different contexts, then we analyse the consequences of this modification.
关键词：Wireless computing; ad hoc; algorithm; routing protocols; validation; simulation.