认知无线电传感器网络自适应接入控制策略

发布时间：2018-02-03 11:35

本文关键词： 认知无线电无线传感器网络节能频谱感知　出处：《系统工程与电子技术》2017年09期 　论文类型：期刊论文

【摘要】：针对当前认知无线传感器网络接入控制策略能量消耗过大及难以适应服务要求的问题,提出一种认知自适应接入控制策略。首先建立接入控制策略模型,利用代表节点降低感知能量消耗和报告开销。然后提出关于感知模型选择及工作周期调整的自适应方法来提高感知效率,深入分析其对系统吞吐量及帧递送率带来的影响。最后仿真结果表明,在达到相同检测目标情况下,提出的自适应接入控制策略所需通信开销较传统策略更少,有效降低了能量消耗,吞吐量较传统方法有了较大提高,在回避主用户情况下服务质量受到的损失更小。
[Abstract]:In view of the current cognitive wireless sensor network access control strategy of energy consumption is too large and difficult to adapt to the service requirements of the problem, this paper proposes a cognitive adaptive access control strategy. Firstly, access control strategy model, using the node energy consumption and reduce perceived costs. Then the report proposed the adaptive method about perception model selection and work cycle adjustment to improve the sensing efficiency, in-depth analysis of the impact of delivery rates on the throughput of the system and the frame. Finally, the simulation results show that under the same detection target, adaptive control strategy should take into the required communication overhead compared with the traditional strategy of less, reduce energy consumption, improves throughput compared to traditional methods by service the quality of avoiding the losses under the circumstances of the main user is smaller.

【作者单位】：空军工程大学理学院;中国人民解放军94136部队;
【基金】：陕西省自然科学基础研究计划(2014JM8344)资助课题
【分类号】：TN925;TP212.9
【正文快照】： 0引言随着各国军事装备技术的发展,联合作战现已成为提升战斗力的重要方式之一,而各型号装备与人员间的互联互通能力决定了战斗力的提升程度。复杂恶劣的战场环境对无线通信网络设计提出了新要求,具有随机密集分布特点的无线传感器网络被美军率先提出并运用在战场环境监测中[1

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