《计算机应用研究》|Application Research of Computers

无线充电体域网基于边际效用的网络资源分配方法

Marginal theory based radio resource allocation in wireless powered body area network

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作者 申帅,董晓龙,钱建生,程德强,张国鹏
机构 1.中国矿业大学 a.信息与控制工程学院;b.计算机科学与技术学院,江苏 徐州 221000;2.山西中煤华晋能源有限责任公司,山西 河津 043300
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文章编号 1001-3695(2020)06-049-1844-04
DOI 10.19734/j.issn.1001-3695.2018.12.0899
摘要 射频能量采集技术可以从根本上解决电池容量对无线体域网生存期的限制,为了提高网络资源分配的效率以及公平性,提出一种基于边际效用理论的网络资源分配方法。首先,设计传感器节点的效用函数,将节点所能获得的吞吐量映射成QoS满意的等级;然后,以最大化网络中全部传感器节点整体效用为目标,将多高效、公平的网络资源分配问题构建成效用最大化问题;最后,通过对偶分解方法求得该问题的最优解。仿真结果表明,与总吞吐量最大化和sigmoid效用最大化方法相比,所提出的方法在获得较高系统整体吞吐量的同时,确保了传感器节点个体获得吞吐量的公平性。
关键词 无线体域网; 射频能量采集; 效用理论; 效用函数; 凸优化理论
基金项目 国家重点研发计划资助项目(2018YFC0808302)
国家自然科学基金资助项目(61471361)
本文URL http://www.arocmag.com/article/01-2020-06-049.html
英文标题 Marginal theory based radio resource allocation in wireless powered body area network
作者英文名 Shen Shuai, Dong Xiaolong, Qian Jiansheng, Cheng Deqiang, Zhang Guopeng
机构英文名 1.a.School of Information & Control Engineering,b.School of Computer Science & Technology,China University of Mining & Technology,Xuzhou Jiangsu 221000,China;2.Shanxi Zhongmei Huajin Energy Co. Ltd. ,Hejin Shanxi 043300,China
英文摘要 Radio frequency(RF) energy harvesting technology can fundamentally break the battery limitation of wireless body area network. For improving the efficiency and fairness of network resource allocation, this paper proposed a marginal utility theory based network resource allocation method. Firstly, it designed the utility function to map the achievable throughput to a satisfaction level of quality of service(QoS). Then, for maximizing the sum-utility of all the sensor nodes in the network, it modelled the efficient and fair resource allocation problem as a sum-utility maximization problem. By using the dual decomposition method, it finally got the optimal solution to the proposed problem in close form. In comparison to the sum-throughput maximization and sigmoid utility maximization methods, the simulation results show that the proposed method can acquire great system sum-throughput while ensuring the throughput allocation for the sensor nodes.
英文关键词 wireless body area network; RF energy harvesting; utility theory; utility function; convex optimization theory
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收稿日期 2018/12/8
修回日期 2019/1/28
页码 1844-1847
中图分类号 TN915.07
文献标志码 A