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Dynamic Clustering and Cooperative Scheduling for Vehicle-to-Vehicle Communication in Bidirectional Road Scenarios
- Dynamic Clustering and Cooperative Scheduling for Vehicle-to-Vehicle Communication in Bidirectional Road Scenarios
- Wang, Junhua; Liu, Kai; Xiao, Ke; Chen, Chao; Wu, Weiwei; Lee, Victor C. S.; Son, Sang-Hyuk
- DGIST Authors
- Son, Sang-Hyuk
- Issue Date
- IEEE Transactions on Intelligent Transportation Systems
- Article Type
- Article in Press
- Ad hoc networks; Computer architecture; Cooperative communication; Data communication systems; Mobile telecommunication systems; Network architecture; Roads and streets; Scheduling; Scheduling algorithms; Signal analysis; Signal to noise ratio; Transportation; Vehicles; Vehicular ad hoc networks; clustering; Cooperative scheduling; Data dissemination; Relays; Roads; System performance; Systems architecture; V2V communications; Vehicle dynamics; Vehicle to vehicle communications
- Efficient data dissemination is critical for enabling emerging applications in vehicular ad hoc networks. As a typical traffic scenario, the bidirectional road scenario of highways bring unique challenges on well exploiting the benefit of vehicle-to-vehicle (V2V) communication for data sharing among vehicles driving in opposite directions. This paper is dedicated to investigating the characteristics of data services in such a scenario and exploring new opportunities for enhancing overall system performance. Specifically, we present a system architecture to enable the road-side unit assisted data scheduling via vehicle-to-infrastructure communication. Then, we give a theoretical analysis on the opportunity of successful data sharing among vehicles driving in opposite directions based on the analysis of signal-to-interference-noise-ratio of V2V communication. On this basis, we propose a clustering mechanism based on the design of a time division policy and the derivation of the optimal cluster length. In addition, a cluster association strategy is designed to enable vehicles to dynamically join or leave a cluster based on their real-time velocities. Furthermore, a two-phase backoff mechanism is designed for distributed data sharing based on V2V communication, and a cooperative scheduling algorithm is proposed for selecting sender vehicles as well as the corresponding data items for broadcasting. Finally, we build the simulation model and give a comprehensive simulation study, which demonstrates that the proposed solutions can effectively improve the overall system performance. IEEE
- Institute of Electrical and Electronics Engineers Inc.
- Related Researcher
Son, Sang Hyuk
RTCPS(Real-Time Cyber-Physical Systems Research) Lab
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