Abu Sufian ¹, Anuradha Banerjee ², Paramartha Dutta ³

Affiliations
1 University of Gour Banga, Malda - 732103, West Bengal, IN
2 Kalyani Government Engineering College, Kalyani - 741235, West Bengal, IN
3 Visva-Bharati University, Santiniketan, Bolpur - 731235, West Bengal, IN

Abstract

In ad hoc networks, the scheduling of route-request packets should be different from that of message packets, because during transmission of message packets the location of the destination is known whereas in route discovery this is not known in most of the cases. The router has to depend upon the last known location, if any, of the destination to determine the center and radius of the circle that embeds all possible current position of the destination. Route-request packets generated from the source are directed towards this circle i.e., directional route discovery can be applied. Otherwise, when no earlier location of the destination is known the route-requested has to be broadcast in the whole network consuming a significant amount of time than directional route discovery. The present article proposes a fuzzy controlled scheduling of route-request packets in particular that greatly reduces the average delay in route discovery in ad hoc networks.

Keywords

Ad Hoc Networks, Delay, Embedding Circle, Route-Request, Scheduling.

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Anuradha Banerjee ¹, Paramartha Dutta ², Abu Sufian ³

Affiliations
1 Department of Computer Applications, Kalyani Govt. Engg. College, Nadia, Kalyani – 741127, West Bengal, IN
2 Department of Computer and Systems Science, Visva-Bharati University, Bolpur – 731235, West Bengal, IN
3 Department of Computer Science, University of Gour Banga, Maida – 732103,West Bengal, IN

Abstract

Nodes in ad hoc networks have limited battery power. Hence they require energy-efficient technique to improve average network performance. Maintaining energy-efficiency in ad hoc networks is really challenging because highest energyefficiency is achieved if all the nodes are always switched off and energy-efficiency will be minimum if all the nodes are fully operational i.e. always turned-on. Energy preservation requires redirection of data packets through some other routes having good performance. This improves data packet delivery ratio and number of alive nodes decreasing cost of messages.

Keywords

Ad Hoc Networks, Congestion, Delay, Energy Preservation, Fuzzy-Controller, Network Partition.

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