Adaptive Location-Aware Routing with Directional Antennas in Mobile AdHoc Networks

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  • Noguchi Taku
    College of Information Science and Engineering, Ritsumeikan University
  • Kobayashi Takahiko
    Graduate School of Information Science and Engineering, Ritsumeikan University

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  • アドホックネットワークにおける指向性アンテナを用いた適応型位置情報ルーチング
  • アドホックネットワーク ニ オケル シコウセイ アンテナ オ モチイタ テキオウガタ イチ ジョウホウ ルーチング

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Abstract

<p>In mobile ad hoc networks (MANETs), when information about the location of the destination node is known, efficient communication can be achieved by using location-based routing protocols. Even in location-based routing protocols, with omnidirectional antennas there is some redundant route discovery by blind flooding of route request packets outside the area between the source and destination. These redundant route discovery propagations can be reduced by using both a scheme of restricted flooding and directional antennas. In this paper, we propose a new location-based routing protocol using both restricted flooding and directional antennas, called Adaptive Location-Aware Routing with Directional Antennas (ALAR-DA). To investigate the performance of ALAR-DA, we compare it with existing location-aware routing protocols. Our simulation results show that ALAR-DA outperforms existing protocols from the standpoints of delay and route discovery traffic.</p>

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