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1. 大连理工大学计算机科学与技术学院,辽宁 大连116024
2. 青岛农业大学理学与信息科学学院,山东 青岛 266109
3. 吴淞海事局,上海200940
Online First:2016-05,
Published:15 May 2016
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Cai-xia SONG, Guo-zhen TAN, Nan DING, et al. Application oriented cross-layer multi-channel MAC protocol for VANET[J]. Journal on Communications, 2016, 37(5): 95-105.
Cai-xia SONG, Guo-zhen TAN, Nan DING, et al. Application oriented cross-layer multi-channel MAC protocol for VANET[J]. Journal on Communications, 2016, 37(5): 95-105. DOI: 10.11959/j.issn.1000-436x.2016097.
提出了一种面向应用的车载网络跨层多信道MAC 协议。对来自应用层不同类型的消息进行实时统计,预测出最优控制信道周期,确保控制信道上安全消息的及时、可靠传输,同时采用预约机制实现消息在服务信道上的无竞争传输,提高服务信道的吞吐量。本协议适合饱和与非饱和的一般VANET 环境,具有较低的计算复杂度,扩展性较好。与现存的其他协议相比较,仿真结果证实了所提协议的优越性。
An application oriented cross-layer multi-channel(AOCM)MAC protocol was proposed for VANET.The AOCM protocol could derive the optimal control channel(CCH)interval to ensure the timely and reliable transmission of safety messages on the CCH
based on real-time statistics and prediction for different types of sages coming from upper application layer.In the service channels(SCH)
the proposed protocol relies on a reservation mechanism for con-tention-free transmission
so as to improve the throughput of SCH.The proposed protocol was suitable for both saturation and unsaturation conditions
and has low computational complexity and high scalability.Extensive simulation results demonstrate the superiority of the AOCM protocol compared with other existing protocols.
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