On an opportunistic forwarding protocol using smart antennas for ad hoc networks (ネットワークシステム)

概要

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Smart antennas can electronically control beam direction. With smart antennas, several nodes may potentially communicate simultaneously in ad hoc networks. In addition, the higher gain of certain direction allows a node to communicate with other nodes far away. However, existing directional protocols has several problems and are not capable of fully exploiting the benefit. One of the major problems is deafness. Deafness problem may cause the increase of the delay and the packet discard. In this paper, we propose a deafness avoidance protocol. The proposed protocol applies the opportunistic forwarding, which can reduce the probability of the retransmission by making use of the neighbor node. Simulation results show that the proposed protocol can outperform than traditional directional protocols.
2011-02-24