Directional sensor networks (DSNs) can significantly improve the performance of a network by employing energy efficient communication protocols. Neighbor discovery is a vital part of medium access control (MAC) and routing protocol, which influences the establishment of communication between neighboring nodes. Neighbor discovery is a challenging task in DSNs due to the limited coverage provided by directional antennas. Furthermore, in these networks, communication can only take place when the beams of the directional antennas are pointed toward each other. In this article, we propose a novel multiple token‐based neighbor discovery (MuND) protocol, in which multiple tokens are transmitted based on an area exploration algorithm. The performance of the protocol is evaluated using the Cooja simulator. The simulation results reveal that the proposed MuND protocol achieves lower neighbor discovery latency, with a 100% neighbor discovery ratio, and has a relatively low communication overhead and low energy consumption.

中文翻译：

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定向传感器网络的基于多个令牌的邻居发现

定向传感器网络（DSN）可通过采用节能通信协议来显着提高网络性能。邻居发现是媒体访问控制（MAC）和路由协议的重要组成部分，它影响相邻节点之间的通信建立。由于定向天线的覆盖范围有限，在DSN中，邻居发现是一项艰巨的任务。此外，在这些网络中，仅当定向天线的波束指向彼此时才能进行通信。在本文中，我们提出了一种新颖的基于多令牌的邻居发现（MuND）协议，其中基于区域探索算法传输多个令牌。使用Cooja模拟器评估协议的性能。