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Abstract
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Article Information:
An Improved QoS Multipath Routing Using Bandwidth Estimation and Rate Adaptation
S. Suganya and S. Palaniammal
Corresponding Author: S. Suganya
Submitted: February 04, 2014
Accepted: March 08, 2014
Published: June 10, 2014 |
Abstract:
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Mobile Adhoc Networks (MANETs) are composed of nodes which communicate with one another without network infrastructure. Their advantage being that they can be used in isolation or along with wired infrastructure, usually via a gateway node to ensure traffic relay for both networks. Quality of Service (QoS) is harder to ensure in ad hoc networks than in other network types, as wireless bandwidth is shared by adjacent nodes with network topology changing as nodes move. Most QoS protocols are implemented for specific scenarios and consider parameters such as network topologies, bandwidth, mobility, security and so on. This work proposes a novel multipath routing protocol which is an extension of AOMDV by discovering routes based on available bandwidth and rate adaptation. The method with Hello message box is used to calculate available bandwidth for a route. Relative Fairness and Optimized Throughput is an approach for rate adaptation in this paper which is to ensure fairness and allow nodes to adapt transmission rates and contention windows to channel quality. In sequence this is determined by calculating the access probability of a channel for each node in a distributed manner approximating successful and failed transmissions.
Key words: Ad hoc On-demand Multipath Distance Vector (AOMDV), Mobile Adhoc Network (MANET), Quality of Service (QoS) , , , ,
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Cite this Reference:
S. Suganya and S. Palaniammal, . An Improved QoS Multipath Routing Using Bandwidth Estimation and Rate Adaptation. Research Journal of Applied Sciences, Engineering and Technology, (22): 4824-4831.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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