文章基本信息

标题：PROACTIVE ROUTING WITH EARLY CONGESTION DETECTION IN MANET
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作者：A. MOHAMMED MUNAWAR HUSSAIN ; Dr. P. SHEIK ABDUL KHADER ; Dr.A.MOHAMED ABBAS 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：2014
卷号：66
期号：1
出版社：Journal of Theoretical and Applied
摘要：Ad hoc mobile networks are composed of mobile nodes communicating through wireless medium, without any fixed backbone infrastructure. In these networks, congestion occurs in any intermediate node, when data packets travel from the source to the destination, and they incur high packet loss and long delay, which cause the performance degradation of a network. This paper proposes Proactive Routing with Early Congestion Detection (PRECD) in MANET. Initially PRECD constructs a non-congested neighbors� list, and finds a route to a destination. All the primary path nodes periodically calculate their queue_status at the node level. While using the early congestion detection technique, the node detects the congestion that is likely to happen, and sends a warning message to the nodes. The ancestor node is aware of this situation, and finds an alternative path to the destination immediately, by applying adaptive path mechanism. Thus, PRECD improves the performance, in terms of reducing the delay, routing overhead, and increases the packet delivery ratio without incurring any significant additional cost. The performance of PRECD was compared with that of Early Congestion Detection and Adaptive Routing (EDAPR) and Early Detection Congestion and Control Routing (EDAODV), using the NS-2 simulator. The result reveals significant improvement over the EDAPR and EDAODV routing schemes.
关键词：MANET; Proactive Routing; Congestion; EDAPR; EDAODV.