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    Location-based routing scheme with adaptive request zone in mobile ad hoc networks
    (2013-01-01)
    Kirdpipat, Putthiphong
    ;
    Thipchaksurat, Sakchai
    Route discovery process is a major mechanism in the most routing protocols in Mobile Ad Hoc Network (MANET). Routing overhead is one of the problems caused by broadcasting the route discovery packet. To reduce the routing overhead, the location-based routing schemes have been proposed. In this paper, we propose our scheme called Location-based Routing scheme with Adaptive Request Zone (LoRAReZ). In LoRAReZ scheme, the size of expected zone is set adaptively depending on the dis-tance between source and destination nodes. Computer simulation has been conducted to show the effectiveness of our propose scheme. We evalu-ate the performances of LoRAReZ scheme in the terms of packet delivery fraction (PDF), routing overhead, average end-to-end delay, throughput, packet collision, average hop count, average route setup time, and power consumption. We compare those performance metrics with those of Lo-cation Aided Routing (LAR) and Location Aware Routing Protocol with Dynamic Adaptation of Request Zone (LARDAR) protocols. The simula-tion results show that LoRAReZ can provide all the better performances among those of LAR and LARDAR schemes. © 2013 The Institute of Electronics, Information and Communication Engineers.
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    Position-based routing protocol by reducing routing overhead with adaptive request zone for mobile ad hoc networks
    (2011-08-12)
    Thipchaksurat, S.
    ;
    Kirdpipat, P.
    In Mobile Ad Hoc Network (MANET), many routing protocols have been proposed to find the route from source node to the destination node. However, the process for discovering the route may increase the routing overhead. In this paper, we improve our previous scheme to reduces routing overhead with adaptive request zone which is called Adaptive Request Zone for Ad Hoc On-Demand Distance Vector (ARZAODV). In ARZAODV, we consider that the request zone may not be fixed but it can be chosen adaptively depending on the variation of distance between source node and destination node because those nodes may change the position. We evaluate the performance of ARZAODV by means of the simulation using NS-2. The performance metrics are packet delivery fraction and routing overhead. Our simulation results are compared with our previous scheme called Modified Ad Hoc On-Demand Distance (MAODV) and the traditional Ad Hoc On-Demand Distance Vector (AODV). The results show that ARZAODV can provide not only reducing the routing overhead and also increasing the packet delivery fraction comparing with MAODV and AODV. © 2011 IEEE.