Open Access

ARTICLE

acSB: Anti-Collision Selective-Based Broadcast Protocol in CR-AdHocs

Yueyue Li^1,*, Zhong Huang¹, Yugang Ma², Guangjun Wen¹

1 Univeristy of Electronic Science and Technology of China, Qingshuihe Campus, No. 2006, Xiyuan Ave, West Hi-Tech Zone, Chengdu, Sichuan, 611731, China.
2 Institute for Infocomm Research, A*STAR, 1 Fusionopolis Way, #21-01 Connexis (South Tower), 138632, Singapore.

* Corresponding Author: Yueyue Li. Email: .

Computers, Materials & Continua 2018, 56(1), 35-46. https://doi.org/10.3970/cmc.2018.03712

Abstract

As a fundamental operation in ad hoc networks, broadcast could achieve efficient message propagations. Particularl y in the cognitive radio ad hoc network where unlicensed users have different sets of available channels, broadcasts are carried out on multiple channels. Accordingly, channel selection and collision avoidance are challenging issues to balance the efficiency against the reliability of broadcasting. In this paper, an anti-collision selective broadcast protocol, called acSB, is proposed. A channel selection algorithm based on limited neighbor information is considered to maximize success rates of transmissions once the sender and receiver have the same channel. Moreover, an anti-collision scheme is adopted to avoid simultaneous rebroadcasts. Consequently, the proposed broadcast acSB outperforms other approaches in terms of smaller transmission delay, higher message reach rate and fewer broadcast collisions evaluated by simulations under different scenarios.

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Keywords

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