Link Availability Prediction for Cognitive Radio Ad Hoc Networks

• 作者: Kai-Hau Yeung Kin-Yeung Wong Ling Hou
• 来源期刊: 电脑和通信(英文)
• 学科: 工学
• 关键词: Cognitive Radio Ad HOC Network Spectrum MOBILITY LINK AVAILABILITY
• 年，卷（期）: 2014,（6）
• 页码范围: 18-24
• 页数: 7页
• 分类号: TN92

摘要

One critical issue for routing in cognitive radio ad hoc networks (CRAHNs) is how to select a reliable path for forwarding traffic. This is because mobility may cause radio links to break frequently. The reliability of a path depends on the availability of those links that constitutes the path. In this letter, we present a novel approach to predict the probability of the availability of the link between two cognitive radio nodes. The prediction is achieved by estimating the link activation and spectrum activation probabilities. Our prediction is verified by simulation and proved to be accurate. This study can provide reliability assurance on dynamic routing for cognitive radio ad hoc networks.