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GPS-Aided AODV Routing Protocol for MANET

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 472)

Abstract

This paper describes suitability of Global Positioning System (GPS) with Ad hoc On-Demand Distance Vector (AODV ) to enhance routing mechanisms in Mobile Ad hoc NETworks (MANETs). AODV is modified where GPS-equipped nodes uses location information to set-up path from source to destination. Route REQuest (RREQ) and Route REPly (RREP) packets are modified to include GPS location of source and destination. Routing table of node is also modified to include GPS information of nodes in a network and is updated from time to time during initialization of network and packet sharing. GPS information in routing table of node is used to set-up path whenever node has data to send. Position information decreases number of nodes involved during path set-up process which ultimately decreases large control overhead during source to destination path formation. Whereas conventional AODV uses global flooding of RREQ during route discovery which results in large control overhead for higher node density networks. In this technique, relative speed is also taken into account while choosing node during route discovery process. If relative speed of next node (to be selected as next hope during route discovery) is higher than limit may result in premature route break and therefore such nodes avoided as next hope. Performance of proposed mechanism is measured using NS3.25 simulations with different scenarios and varying load in a network. Comparative analysis of simulation results shows better performance of GPS-aided AODV in terms of reduction in control overhead, end-to-end delay, route discovery time and increase in throughput.

Keywords

MANETs GPS AODV Routing Normalized routing load Packet delivery ratio End-to-end delay Throughput Jitter Mobility Packet lost 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.GTUAhmedabadIndia
  2. 2.EC DepartmentGECGandhinagarIndia

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