| 车载自组织网络中的最小延时链路调度算法 |
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| 引用本文： | 张勇,王俊义,林基明,丁进.车载自组织网络中的最小延时链路调度算法[J].桂林电子科技大学学报,2014(3):173-179. |
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| 作者姓名： | 张勇 王俊义 林基明 丁进 |
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| 作者单位： | 桂林电子科技大学信息与通信学院,广西桂林541004 |
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| 基金项目： | 国家自然科学基金（61261017）;广西自然科学基金（2013GXNSFAA019334） |
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| 摘 要： | 为降低车载自组织网络中的信息传输延时,提高信息接收的及时性,构建车载网络中信息传输延时最小化数学模型。通过比较不同传输模式(包括直接传输、协作传输和多跳传输)下链路的信息传输延时大小,提出一种梯度投影算法解决多路径路由中信息传输延时最小化问题。源节点可通过此算法选择延时最小的传输方式,将信息逐级发送至目的节点。仿真结果表明,梯度投影算法具有较好的收敛性及较强的实用性。
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| 关 键 词： | 车载自组织网络 协作传输 梯度投影算法 延时最小化 |
A minimum delay link scheduling algorithm in vehicular ad hoc networks |
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| Zhang Yong,Wang Junyi,Lin Jiming,Ding Jin.A minimum delay link scheduling algorithm in vehicular ad hoc networks[J].Journal of Guilin Institute of Electronic Technology,2014(3):173-179. |
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| Authors: | Zhang Yong Wang Junyi Lin Jiming Ding Jin |
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| Affiliation: | (School of Information and Communicalion Engineering, Guilin University of Electronic Technology, Guilin 541004, China) |
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| Abstract: | In order to reduce the information transmission delay in the vehicularad ad hoc networks and improve the timeliness of re-ceiving information,the information transmission delay minimization model is made,the link delay variation in different transmission modes（including direct transmission,cooperative transmission,multi-hop transmission）are compared,and then a gradient proj ec-tion algorithm is proposed to solve the problem of the information transmission delay minimization in the multipath routing.Using the algorithm,the source node can choose a minimum delay transmission mode to send the information to the destination node.The simulation results show that the algorithm has good convergence and strong practicability. |
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| Keywords: | vehicular ad hoc networks cooperative transmission gradient proj ection algorithm delay minimization |
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