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Article

A Bi-Directional Carrier Sense Collision Avoidance Neighbor Discovery Algorithm in Directional Wireless Ad Hoc Sensor Networks

School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710072, China
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Author to whom correspondence should be addressed.
Sensors 2019, 19(9), 2120; https://doi.org/10.3390/s19092120
Received: 18 March 2019 / Revised: 17 April 2019 / Accepted: 3 May 2019 / Published: 7 May 2019
(This article belongs to the Special Issue Topology Control and Protocols in Sensor Network and IoT Applications)
From the perspective of media protocol control and routing of directional wireless ad hoc sensors networks, neighbor discovery protocol is an important problem to be solved first. In the past period of time, some methods have been studied on neighbor discovery protocol, but they have a common defect of link collision. The collision is caused by mutual interference of multiple transmitting nodes which are in one reception beam of the receiving node. To solve this problem, we propose a neighbor discovery algorithm using a bi-directional carrier sense collision avoidance and multi subchannels based on a scan-based algorithm (BD-SBA). Based on a scan-based algorithm (SBA), bi-directional carrier sense of the BD-SBA algorithm is performed in the first broadcast step which can reduce the collision of broadcasting the scanning request (SREQ) frames. In the second step (the reply step), the mechanism of multiple subchannels and multiple slots is applied to reduce the collision of the scanning response (SRES) frames. From the analysis and simulation, we can see that nodes using proposed algorithm can discover their neighbor nodes in fewer time. Moreover, the proposed algorithm has better performance for different beamwidths and densely distributed scenes. So it has great significance in engineering application. View Full-Text
Keywords: directional wireless ad hoc sensor networks; neighbor discovery; bi-directional carrier sense; multi-subchannel; scan based algorithm (SBA) directional wireless ad hoc sensor networks; neighbor discovery; bi-directional carrier sense; multi-subchannel; scan based algorithm (SBA)
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MDPI and ACS Style

Yang, A.; Li, B.; Yan, Z.; Yang, M. A Bi-Directional Carrier Sense Collision Avoidance Neighbor Discovery Algorithm in Directional Wireless Ad Hoc Sensor Networks. Sensors 2019, 19, 2120. https://doi.org/10.3390/s19092120

AMA Style

Yang A, Li B, Yan Z, Yang M. A Bi-Directional Carrier Sense Collision Avoidance Neighbor Discovery Algorithm in Directional Wireless Ad Hoc Sensor Networks. Sensors. 2019; 19(9):2120. https://doi.org/10.3390/s19092120

Chicago/Turabian Style

Yang, Annan; Li, Bo; Yan, Zhongjiang; Yang, Mao. 2019. "A Bi-Directional Carrier Sense Collision Avoidance Neighbor Discovery Algorithm in Directional Wireless Ad Hoc Sensor Networks" Sensors 19, no. 9: 2120. https://doi.org/10.3390/s19092120

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