Joint Routing and Spectrum Allocation for Multi-hop Inter-Vehicle Communication in Cognitive Radio Networks

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• 作者：Tsubasa Suzuki ; Takeo Fujii
• 关键词：IVC (Inter ; vehicle communication) ; VANET ; Spectrum sharing ; Multi ; hop networks ; AODV
• 刊名：International Journal of Intelligent Transportation Systems Research
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：15
• 期：1
• 页码：39-49
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Electrical Engineering; Automotive Engineering; Robotics and Automation; Computer Imaging, Vision, Pattern Recognition and Graphics; Civil Engineering; User Interfaces and Human Computer Interaction;
• 出版者：Springer US
• ISSN：1868-8659
• 卷排序：15

文摘

In multi-hop inter-vehicle communications (MHIVC) for cognitive radio (CR), high mobility of vehicles causes the situation change of the primary user (PU) near the secondary user (SU) and changes a link distance in a short time. In this paper, in order to overcome these problems, we propose a joint routing and spectrum allocation utilizing the PU information (e.g., position, channel, and transmit power) and vehicle mobility information (e.g., position, direction, and speed) to predict the end-to-end delay time for sending required packets. By using PU information, we predict a period of SU’s available frequency according to SU’s mobility. By using SU’s mobility information, we predict the available transmission data rate of each frequency. The proposed joint routing and spectrum allocation is more likely to establish minimum delay time multi-hop paths for VANET. By using computer simulations, we confirm the effectiveness of the proposed method in terms of end-to-end delay time.