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1.
无线传感网络路由协议重点考虑如何在不影响数据传输的前提下利用相应的路由算法来实现整个网络生命周期的最大化。本文综述了无线传感网络路由协议研究方面的一些最新成果,主要分析了一些重要的路由协议及其特点,并展望了未来这一领域的发展趋势。  相似文献   

2.
无线传感器网络的特性使它面临着比传统网络更大的安全挑战。路由协议作为无线传感器网络的关键因素,其安全更为重要。介绍了无线传感器网络路由协议分类及其脆弱性,分析了几种网络路由协议的攻击方法,阐述了网络路由协议的安全策略。  相似文献   

3.
传感器网络系统安全中安全路由协议是非常重要的环节,而且也制约着无线传感器网络的使用。安全路由协议的设计和实现由于传感器网络本身的一些特性而面临着挑战。文章对攻击网络层的各种形式进行了总结,从需求、研究现状等方面对路由协议的安全问题进行了分析,并提出了解决这些问题的方式,指明了未来研究的重点。  相似文献   

4.
无线传感网络(WSN)路由协议中,分簇路由具有拓扑管理方便、能量高效和数据融合简单等优点,成为当前重点研究的路由技术。通过研究各种环境下的移动传感器网络,有效地降低能耗则是研究移动无线传感器网络的重要目的之一。针对无线传感网络中移动性问题,基于LEACH协议,利用移动传感器网络中节点距离、速度和剩余能量等因素提出了能量高效的移动分簇路由算法。实验结果表明此算法能够较好地支持节点移动,从而降低网络能耗,延长网络生存时间。  相似文献   

5.
随着信息技术的不断发展,无线传感网络的应用范围不断扩大。无线传感网络中的节点存在一定的能量约束,如何降低网络运行能耗,延长网络有效使用时间成为一项研究课题。本文给出了一种无线传感网络路由算法,构建了无线传感网络的应用模型,对节点的能耗进行了分析,给出了基于簇头的信息路由策略,并对簇头的动态更新理念进行了描述。本文方法丰富了无线传感网络路由研究,具有一定的参考价值与借鉴意义。  相似文献   

6.
无线传感器网络(Wireless Sensor Networks,简称WSNs)作为一种新的获取信息的方式和处理模式,已成为通信领域的研究重点。而路由协议则是无线传感器网络当前的热点研究之一。目前,针对较为典型的分簇式路由协议LEACH路由协议的研究,是无线传感器网络目前研究的一个热点。介绍了无线传感器网络路由协议常见的攻击类型,并从路由安全的角度建议性的提出了一种对LEACH路由协议针对安全性的改进方案,并应用NS2仿真平台,对改进协议做了仿真并进行了性能分析。  相似文献   

7.
无线传感器网络与传统网络的特点不同,且与人们日常生活应用息息相关。无线传感器网络不能利用传统的路由协议,网络层的路由技术在无线传感器网络体系结构中非常重要。数据融合简单、拓扑管理方便、能量利用高效是分簇路由具有的优点,是当前研究非常热门的路由技术。文章分析了无线传感器网络分簇路由概念,着重对无线传感网络路由分簇协议的分类和协议系统进行分析,为路由无线传感器网络路由分簇协议的进一步研究提供参考。  相似文献   

8.
《现代电子技术》2016,(10):120-123
无线多媒体传感网络采用无线信号完成通信,会受到网络带宽的限制,实时传递能量较低,限制多媒体数据的传输。提出一种基于改进蚁群算法的无线多媒体传感网络的路由结构优化方法,根据改进蚁群算法,设计无线多媒体传感网络路由模块的硬件构造,改进无线多媒体传感网络路由优化过程,通过改进基本蚁群算法中的转移概率模型,对蚁群移动概率进行完善,确保负载的均衡,实现路由结构优化设计。实验结果说明,所提方法对无线多媒体网络中的路由结构进行改进后,均衡了网络能量消耗,使得无线传感网络节点的平均剩余能量更多,提高无线多媒体传感网络的运转周期。  相似文献   

9.
谢文兰 《激光杂志》2022,43(4):130-134
为解决混合光无线传感网络节点因自身能量耗尽而过早消亡的问题。结合改进的蚁群算法,对一般混合光无线传感网络节能路由算法进行优化。首先给出节能路由算法的假定条件,设置算法具体应用场景,然后构建混合光无线传感器网络通信能耗模型,最后从引入路径度量,改进前向蚂蚁和返回蚂蚁的信息素更新规则着手,提高传统蚁群算法收敛速度,以减少能量消耗,实现混合光无线传感网络节能路由算法优化。结果表明:与三种算法进行对比,所研究算法应用下,混合光无线传感网络节点消亡时间更晚,网络能量剩余更多,由此说明所研究算法能延长混合光无线传感网络使用寿命。  相似文献   

10.
赵海霞 《信息技术》2006,30(9):44-48
GEAR路由是无线传感器网络中一种高效的位置和能量感知的地理路由协议,在抵御路由攻击方面有较好的特性,但是GEAR路由不能抵御虚假路由、女巫、选择性转发等攻击。针对该问题,提出了一种适合无线传感器网络特征的、基于位置密钥对引导模型的安全GEAR路由协议SGEAR,并对该协议进行了性能分析,分析显示在较小的系统开销下,SGEAR能有效抑制上述攻击及DoS攻击。  相似文献   

11.
With rapid development of wireless communication, sensor, micro power system and electronic technology, the research on wireless sensor network has attracted more and more attention. The work proposed routing algorithm in wireless sensor network based on ant colony optimization by analyzing routing protocol and utilizing advanced idea. Ant colony optimization algorithm has advantages in implementing local work, supporting multiple paths and integrating link quality into pheromone formation. In routing selection, the work calculated probability that node is selected as the next hop according to pheromone concentration on the path. With characteristics including self-organization, dynamic and multipath, ant colony optimization algorithm is suitable for routing in wireless sensor network. With low routing cost, good adaptability and multipath, the algorithm balanced energy consumption to prolong network lifetime. In terms of simulation and experiments, ant colony algorithm was proved to be suitable for finding optimal routing in wireless sensor network, thus achieving design goal of routing algorithm.  相似文献   

12.
In wireless sensor network (MSN), reliability is the main issue to design any routing technique. To design a comprehensive reliable wireless sensor network, it is essential to consider node failure and energy constrain as inevitable phenomena. In this paper we present energy efficient node fault diagnosis and recovery for wireless sensor networks referred as energy efficient fault tolerant multipath routing scheme for wireless sensor network. The scheme is based on multipath data routing. One shortest path is used for main data routing in our scheme and other two backup paths are used as alternative path for faulty network and to handle the overloaded traffic on main channel. Shortest pat data routing ensures energy efficient data routing. Extensive simulation results have revealed that the performance of the proposed scheme is energy efficient and can tolerates more than 60% of fault.  相似文献   

13.
Reducing the energy consumption of network nodes is one of the most important problems for routing in wireless sensor networks because of the battery limitation in each sensor. This paper presents a new ant colony optimization based routing algorithm that uses special parameters in its competency function for reducing energy consumption of network nodes. In this new proposed algorithm called life time aware routing algorithm for wireless sensor networks (LTAWSN), a new pheromone update operator was designed to integrate energy consumption and hops into routing choice. Finally, with the results of the multiple simulations we were able to show that LTAWSN, in comparison with the previous ant colony based routing algorithm, energy aware ant colony routing algorithms for the routing of wireless sensor networks, ant colony optimization-based location-aware routing algorithm for wireless sensor networks and traditional ant colony algorithm, increase the efficiency of the system, obtains more balanced transmission among the nodes and reduce the energy consumption of the routing and extends the network lifetime.  相似文献   

14.
Wireless sensor network consists of sensor nodes with battery operated device. The key challenges in the wireless sensor network are energy consumption and routing optimization. This work presents the cluster based load balancing (CBLB) routing protocol. The proposed routing protocol is used to minimize the energy consumption and increase the routing performance. It avoids the routing robustness, delay and increases the delivery rate and network performance. In existing techniques, different routing protocols such as LEACH, HEED and MESTER were used to increase the network performance and to decrease the energy consumption. But these existing techniques did not satisfy the performance requirements of wireless sensor networks. Hence, there is a requirement to develop a technique that meets the QoS requirements and needs of wireless sensor network. The proposed CBLB routing protocol creates a cluster head in the decentralized network and the cluster head will be used to distribute the workload evenly to the cluster members for reducing the energy consumption in wireless sensor network. Experimental results analyze the performance of the proposed protocol with the different existing protocols. The proposed protocol achieves high throughput, delivery rate and reduces the energy consumption, delay and routing overhead.  相似文献   

15.
为使整个无线传感器网络的性能最优、寿命最长,充分发挥每一个节点的作用,网络路由的设计至关重要。首先分析了无线传感器网络路由协议所面临的诸多挑战,然后针对无线传感器网络的LEACH路由协议及其演进协议PEGASIS和HEED进行了深入研究,并利用理论分析的方法,全面比较了几种路由协议在网络寿命与时延方面的性能,最后给出了相应的仿真流程及仿真结果。  相似文献   

16.
基于博弈论的无线传感器网络路由算法研究   总被引:1,自引:1,他引:0  
在通过博弈论概念建立网络模型的基础上,讨论了各种针对特定传感器网络特点的路由算法。归纳了基于博弈论的无线传感器网络路由算法的设计原则和分类方法。详细比较了这些算法的特点、性能差异和应用范围.最后对无线传感器网络路由算法的研究现状进行了总结,并指出未来的研究重点。  相似文献   

17.
基于博弈论的井下监测网QoS路由算法研究   总被引:1,自引:0,他引:1  
构建煤矿井下无线视频监控系统可有效弥补有线监控系统的不足,以无线多媒体传感器为网络节点设计了煤矿井下无线视频监控系统,针对传感器存在潜在的自私性特点,引入博弈理论思想,建立一种无线多媒体传感器网络QOS路由的博弈模型,并将其融入到路由协议中,提出了一种博弈路由协议,仿真实验表明能够有效均衡节点能量消耗,克服传感器自私性...  相似文献   

18.
无线HART(Highway Addressable Remote Transducer)是当前工业无线传感器网络中应用最为广泛的协议,但无线HART没有提供动态路由机制以满足对工业无线网络应用至关重要的稳定性和鲁棒性。该文在无线HART协议基础上,提出一个基于收集树协议的可应用于工业无线传感器网络的动态路由机制。它占用时分多址(TDMA)超帧中的前几个时间片来产生和维护网络拓扑。通过仿真实验从3个方面对该动态路由机制进行了评估:拓扑生成时间,链路质量及网络拓扑的稳定性。仿真和评估结果表明该动态路由机制可以在基于TDMA的工业无线传感器网络中应用。  相似文献   

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