acSB:Anti-Collision Selective-Based Broadcast Protocol in CRAdHocs

• 作者: Guangjun Wen Yueyue Li Yugang Ma Zhong Huang
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: BROADCAST PROTOCOL SELECTIVE PROTOCOL collision AVOIDANCE distributed data DISSEMINATION cognitive radio ad hoc network
• 年，卷（期）: 2018,（7）
• 页码范围: 35-46
• 页数: 12页
• 分类号: TN9

摘要

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 anticollision 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 anticollision 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.