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1. 深圳大学电子与信息工程学院,广东 深圳 518060
2. 鹏城实验室,广东 深圳 518055
[ "曾健华(1998‒ ),男,深圳大学电子与信息工程学院硕士生,主要研究方向为车联网、信息年龄、凸优化等" ]
[ "郭重涛(1987‒ ),男,博士,深圳大学电子与信息工程学院副教授、硕士生导师,主要研究方向为无线通信、机器学习等" ]
[ "郭成(1986‒ ),男,博士,鹏城实验室助理研究员,主要研究方向为空口技术、组网技术、星地融合、无线AI、软件无线电等" ]
纸质出版日期:2024-03-30,
网络出版日期:2024-03,
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曾健华, 郭重涛, 郭成. 面向信息年龄的车辆状态更新网络采样与功率控制[J]. 物联网学报, 2024,8(1):71-83.
JIANHUA ZENG, CHONGTAO GUO, CHENG GUO. Age of information-oriented sampling and power control in vehicular status update networks. [J]. Chinese journal on internet of things, 2024, 8(1): 71-83.
曾健华, 郭重涛, 郭成. 面向信息年龄的车辆状态更新网络采样与功率控制[J]. 物联网学报, 2024,8(1):71-83. DOI: 10.11959/j.issn.2096-3750.2024.00376.
JIANHUA ZENG, CHONGTAO GUO, CHENG GUO. Age of information-oriented sampling and power control in vehicular status update networks. [J]. Chinese journal on internet of things, 2024, 8(1): 71-83. DOI: 10.11959/j.issn.2096-3750.2024.00376.
针对基于广播通信的车辆状态更新网络,采用最小时间戳优先的D/Geo/1/1排队系统模型传输数据包,利用排队论分析了接收端的信息年龄(AoI
age-of-information)中断概率和发送端的平均发送功率,根据AoI中断概率随数据包采样速率和发送功率变化的单调性,提出了基于迭代的采样速率和发送功率联合优化算法,通过采样与功率控制在功率受限的条件下最小化所有接收端中的最大AoI中断概率,实现了接收端信息新鲜度的公平提升。仿真结果验证了理论分析的准确性和算法的高效性。
In a vehicular status update network based on broadcast communication
a D/Geo/1/1 queuing mechanism with minimum timestamp priority was adopted to transmit data packets.The queuing theory was used to analyze the age-ofinformation (AoI) outage probability of the receivers and the average transmit power of the transmitter.Based on the monotonicity of the AoI outage probability with respect to packet sampling rate and transmit power
an iterative algorithm for jointly optimizing sampling rate and transmit power was proposed to minimize the maximum AoI outage probability of all receivers under power constraint
which fairly improved information freshness of all receivers under sampling and power control.Simulation results verify the accuracy of theoretical analysis and the efficiency of the algorithm.
车辆状态更新网络广播通信信息年龄中断概率功率控制
vehicular status update networkbroadcast communicationage-of-information outage probabilitypower control
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