摘要
在认知传感器节点构建无线传感器网络的过程中,为了降低节点的能量消耗和提高数据的传输能力,提出一种基于稳定性的能效路由协议。该协议引入了稳定性因子,通过采用授权用户占用信道模型建模,并不断调整稳定性因子来研究路径选择与系统能量消耗的关系,找出一种受主用户影响最小的合理路径选择方案,减少链路失效的次数,提高数据传输能力,且保证较小的能量消耗,从而有效地均衡网络能量,延长网络生命周期。模拟的结果与理论分析结果一致,且表明所提出的协议在能量消耗和数据传输能力方面都具有更好的表现。
In order to reduce the energy consumption of nodes and improve the transmission capacity of data in the process of building wireless sensor network at the cognitive sensor node,a new time-limited energy-efficient protocol based on stability was proposed.The protocol introduces a stability factor through employing the channel model to mo-del by authorized users and studies the relationship between path selection and system energy consumption by adjusting the stability factor constantly to find a reasonable path choice which is least affected by users,thus reducing the times of link failure,improving data transmission capacity,ensuring the lesser energy consumption,and achieving the goal of effectively balancing the network energy and extending the network lifecycle.The simulation results are consistent with the theoretical analysis and show that the proposed protocol has better performance in energy consumption and data transmission capacity.
作者
朱江
雷云
王雁
ZHU Jiang;LEI Yun;WANG Yan(Chongqing Key Lab of Mobile Communications Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)
出处
《计算机科学》
CSCD
北大核心
2018年第11期97-102,共6页
Computer Science
基金
国家自然科学基金(61102062)
教育部科学技术研究重点项目(212145)
重庆市科委自然科学基金(cstc2015jcyjA40050)资助
关键词
认知无线传感器网络
稳定性
能效
网络生命周期
Cognitive wireless sensor network
Stability
Energy efficiency
Network life cycle
