Abstract
To improve the efficiency of neighbor discovery in wireless networks with directional antennas,a busy-tone aided algorithm was proposed.With the help of omni-directional busy-tones,the problems of collision and idleness in wireless communication were effectively resolved;as a result,the channel utilization ratio was increased.The direction of antenna beam was adjusted according to the Direction of Arrival(DOA) of busy-tones.Through this strategy,communication efficiency was improved.The experimental results show that,compared with the conventional ALOHA-like algorithm and the neighbor discovery algorithm based on the feedback mechanism,the proposed algorithm has a better performance.
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