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Simulation & Performance Evaluation of QoS Routing Protocol for Adhoc Networks Using Directional Communication

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DOI: 10.4236/ijcns.2012.512087    4,222 Downloads   6,117 Views   Citations

ABSTRACT

A wireless ad-hoc network is a self-organized wireless network without fixed or backbone infrastructure. All nodes have routing capability and use peer-to-peer packet transmission or forward packets to other node using multi hop communication. Now days mobile ad-hoc networks are being used for different applications and traffics, so it require quality of service (QoS) support in routing protocol. In this paper, a modified QoS routing protocol using directional antenna has been proposed. High and normal priority can be assigned based on type of traffic. All the nodes in the path used by high priority flow are reserved as high priority flow for that flow and normal priority flow will avoid the paths used by high priority flows. If no disjoint paths are available, there may be two possibilities: Normal priority flows are blocked and other is, normal priority flows are allow using the coupled path with high priority flow. Blocking the normal priority flow, QoS routing protocol improves the performance of high priority flow. This concept may be use in emergency communication. Simulation results show that by assigning the priorities to flows, performance of high priority flows are improved and it will further improved by blocking the normal priority flow.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

A. Kumar and R. Tripathi, "Simulation & Performance Evaluation of QoS Routing Protocol for Adhoc Networks Using Directional Communication," International Journal of Communications, Network and System Sciences, Vol. 5 No. 12, 2012, pp. 825-833. doi: 10.4236/ijcns.2012.512087.

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