A multi-channel token ring protocol for QoS provisioning in inter-vehicle communications

  • Authors:
  • Yuanguo Bi;Kuang-Hao Liu;Lin X. Cai;Xuemin Shen;Hai Zhao

  • Affiliations:
  • Department of Computer Science and Technology, Northeastern University, Shenyang, China;Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan;Department of Electrical and Computer Engineering, University of Waterloo, Canada;Department of Electrical and Computer Engineering, University of Waterloo, Canada;Department of Computer Science and Technology, Northeastern University, Shenyang, China

  • Venue:
  • IEEE Transactions on Wireless Communications
  • Year:
  • 2009

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Abstract

This paper proposes a multi-channel token ring media access control (MAC) protocol (MCTRP) for inter-vehicle communications (IVC). Through adaptive ring coordination and channel scheduling, vehicles are autonomously organized into multiple rings operating on different service channels. Based on the multi-channel ring structure, emergency messages can be disseminated with a low delay. With the token based data exchange protocol, the network throughput is further improved for non-safety multimedia applications. An analytical model is developed to evaluate the performance of MCTRP in terms of the average full ring delay, emergency message delay, and ring throughput. Extensive simulations with ns-2 are conducted to validate the analytical model and demonstrate the efficiency and effectiveness of the proposed MCTRP.