Implementation and Performance Evaluation of the Gateway Discovery Approaches in the Integrated MANETInternet Scenario
Journal Title: International Journal on Computer Science and Engineering - Year 2011, Vol 3, Issue 3
Abstract
The mobile ad hoc networks have become a major component of the future network development due to their ease of deployment, self-configurability, flexibility and independence on any existing network infrastructure. But most of the research in the field of ad hoc network is limited to stand-alone isolated networks. The demand for any time anywhere connectivity has increased rapidly with the tremendous growth of the Internet in the past decade and due to the huge influx of highly portable devices such as laptops, PDAs etc. In order to facilitate the users with the huge pool of resources and the global services available from the Internet and for widening the coverage area of the MANET there is a growing need to integrate these ad hoc networks to the Internet. For this purpose we need gateways which act as bridges between these two different protocol architectures. The gateway discovery in hybrid network is considered as a critical and challenging task and with decreasing pause time and greater number of sources it becomes even more complex. Due to the scarcity of network resources in MANET, the efficient discovery of the gateway becomes is a key issue in the design and development of future hybrid networks. In this paper the AODV reactive routing protocol is extended to support the communication between the MANET and the Internet. We have carried out a systematic simulation based performance evaluation of the different gateway discovery approaches using NS2 under different network scenarios. The performance differentials are analyzed on the basis of three metrics - packet delivery fraction, average end-to-end delay and normalized routing load.
Authors and Affiliations
Koushik Majumder , Dr. Sudhabindu Ray , Prof. Subir Kumar Sarkar
Keywords
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