摘要
无线体域网(wireless body area network,WBAN)中由于各节点电池充电或节点替换较为困难,若节点因信息感知、传输、存储致使能量消耗殆尽将导致节点无法正常工作,影响网络连通性及数据传输性能,降低网络生存时间。WBAN中可用时隙、频谱资源有限,各类传感器节点业务需求不同,如何优化WBAN的功率分配,以实现节点能耗降低以及网络生存期延长是亟待解决的问题。针对多个WBAN共存的应用场景,在考虑不同WBAN节点业务Qo S需求及多个WBAN网间干扰限制的基础上,提出一种基于能效最大化的体域网功率分配算法,以实现网络联合能效的最大化。仿真结果表明所提算法在满足用户业务需求的条件下可以实现对用户功率的最佳分配。
The charging or replacement for each node battery in WBAN is difficult,so the node information awareness,transmission,and storage make the energy consumed,leading to the fact that the node cannot work normally,which affects network connectivity and data transmission performance,and reduces the network lifetime.Due to the limitation of the available slot time and spectrum resources in WBAN,and the different service requirements of all kinds of sensor nodes,how to optimize the power allocation of WBAN in order to reduce the energy consumption of nodes and prolong the network lifetime is an urgent problem to be solved.In view of the application scenarios where multiple WBANs coexist,a power allocation algorithm based on energy efficiency maximization was proposed to maximize the joint energy efficiency of the network,taking into account the service QoS requirements of different WBAN nodes and the interference limitations among multiple WBANs.The simulation results show that the proposed algorithm can achieve the optimal power allocation under the condition of satisfying the user's business needs.
作者
葛先雷
王盼盼
高强
沈晓波
束仁义
蔡俊
GE Xianlei;WANG Panpan;GAO Qiang;SHEN Xiaobo;SHU Renyi;CAI Jun(School of Electronic Engineering,Huainan Normal University,Huainan 232000,China;China Mobile Communications Group,Jilin Co.Ltd.,Changchun 130000,China)
出处
《邵阳学院学报（自然科学版）》
2019年第1期43-51,共9页
Journal of Shaoyang University：Natural Science Edition
基金
安徽省高等学校自然科学重点项目(KJ2017A455)
淮南师范学院教科研项目(2017hsjyxm93
2017xj74)
关键词
无线体域网
功率分配
网络生存期
能效
网间干扰
wireless body area network
power allocation
network lifetime
energy efficiency
inter-network interference
