Abstract
Mobile ad hoc network (MANET) is a collection of wireless mobile hosts dynamically forming a temporary network without the aid of any existing established infrastructure. Quality of service (QoS) is a set of service requirements that needs to be met by the network while transporting a packet stream from a source to its destination. QoS support MANETs is a challenging task due to the dynamic topology and limited resources. The main objective of this paper is to enhance the QoS routing for MANET using temporally ordered routing algorithm (TORA) with self-healing and optimized routing techniques (SHORT). SHORT improves routing optimality by monitoring routing paths continuously and redirecting the path whenever a shortcut path is available. In this paper, the performance comparison of TORA and TORA with SHORT has been analyzed using network simulator for various parameters. TORA with SHORT enhances performance of TORA in terms of throughput, packet loss, end-to-end delay, and energy.
Highlights
In mobile ad hoc networks (MANETs), all nodes are connected dynamically in an arbitrary manner
The performance improvement over temporally ordered routing algorithm (TORA) is around 50% when the pause time varies from 10 to 30 seconds. This is because self-healing and optimized routing techniques (SHORT) will gradually heal and rectify if there is a shortcut path, resulting in better throughput
The performance comparison of TORA and TORA with SHORT has been analyzed in this paper using network simulator-2
Summary
In mobile ad hoc networks (MANETs), all nodes are connected dynamically in an arbitrary manner. Routing protocols find a path to be followed by data packets from a source node to a destination node. MANETs routing protocols can be classified into three major categories based on routing information update mechanism. They are proactive or tabledriven routing protocols, reactive or on-demand routing protocols, and hybrid routing protocols. TORA, a reactive routing protocol, is taken for analysis [1]. SHORT is a mechanism that optimizes the route length result in significant performance gain over the underlying routing protocols.
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