基于无线体域网的传输功率控制和调度算法

doi:10.11959/j.issn.1000-436x.2015224

通信学报 ›› 2015, Vol. 36 ›› Issue (10): 271-277.doi: 10.11959/j.issn.1000-436x.2015224

基于无线体域网的传输功率控制和调度算法

王志军¹,胡封晔¹,尹颖奇²,刘小兰¹

¹ 吉林大学通信工程学院，吉林长春 130012
² 国网内蒙古东部电力有限公司兴安供电公司，内蒙古自治区兴安盟 137400

出版日期:2015-10-25 发布日期:2015-10-27
基金资助:
国家自然科学基金资助项目;国家自然科学基金资助项目

Transmission power control and scheduling algorithm in wireless body area networks

Zhi-jun WANG¹,Feng-ye HU¹,Ying-qi YIN²,Xiao-lan LIU¹

¹ College of Communication Engineering,Jilin University,Changchun 130012,China
² East Inner Mongolia Grid Company LTD.,Xing’an 137400,China

Online:2015-10-25 Published:2015-10-27
Supported by:
The National Natural Science Foundation of China;The National Natural Science Foundation of China

摘要/Abstract

摘要：

无线体域网未来将在医疗、运动、休闲和生活等方面起着越来越重要的作用。解决无线体域网的2个关键问题：第一是在每个时隙内选择哪一个传感器节点传输来最大化网络的生存期，确保网络的公平性；第二是在未降低可靠性的前提下，选择合适的发射功率等级达到节省能量的目的。针对第一个问题，提出一种分布式调度算法去均衡无线体域网的生存期和公平性；针对第二个问题，提出改进的传输功率控制算法自适应地校正传输功率。仿真结果验证了所提出算法的有效性。

关键词: 无线体域网, 生存期, 公平性, 功率控制, 调度算法

Abstract:

Wireless body area networks(WBAN)were expecting to play an essential role for healthcare,sports,leisure,and all the aspect of our daily life.The purpose was to solve two key issues of WBAN.The first issue was which sensor should transmit during each time slot in order to maximize the lifetime as well as maintaining fairness performance.The second issue was which transmit power level should be chosen for the purpose of energy saving without degrading reliability.For the first problem,a distributed scheduling algorithm was proposed to balance lifetime and fairness for WBAN.For the second issue,a modified transmission power control algorithm was presented to adjust transmit power adaptively.Simulation results are presented to demonstrated efficacy of the proposed algorithm.

Key words: wireless body area networks, lifetime, fairness, power control, scheduling algorithm

王志军,胡封晔,尹颖奇,刘小兰. 基于无线体域网的传输功率控制和调度算法[J]. 通信学报, 2015, 36(10): 271-277.

Zhi-jun WANG,Feng-ye HU,Ying-qi YIN,Xiao-lan LIU. Transmission power control and scheduling algorithm in wireless body area networks[J]. Journal on Communications, 2015, 36(10): 271-277.

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参考文献 14

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数据速率/(bit·s^?1)	Rx_sens/dBm
121.4	?95
242.9	?93
485.7	?90
971.4	?86

功率控制机制	指标	保守	激进	平衡
原有的算法	能耗/mw	22.191 7	19.599 4	20.692 9
原有的算法	中断概率%	0.098	0.338	0.135
改进的算法	能耗/mw	21.697 8	19.541 2	20.458 7
改进的算法	中断概率%	0.090	0.256	0.107

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基于无线体域网的传输功率控制和调度算法

Transmission power control and scheduling algorithm in wireless body area networks

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