异构环境下基于移动代理的主动自组网构架

分析了移动自组网的异构性、路由协议和能量保护问题,应用移动代理和主动网络技术,给出了一个开放的、扩展性强的基于移动代理的主动自组网构架,该构架通过分群策略,使多个路由协议能在异构环境下并行工作,而且也满足移动节点能量保护的需求。     

高动态移动自组网路由协议研究

目前的移动自组网研究主要针对运动速度较慢的地面网络。本文研究由高速节点组成的高动态移动自组网的路由协议,提出了一个结合表驱动路由和地理位置路由的混合路由协议TOPOS,在局部使用表驱动路由加快数据包的转发,而在全局使用地理位置路由以适应快速变化的网络拓扑。在OPNET仿真平台上对TOPOS和已有的AODV及GRP协议的性能比较表明,TOPOS对于节点的运动速度和网络规模具有更好的适应性。     

移动自组网基于地理位置信息的能量辅助路由协议

针对移动自组网网络生存时间较短、传统按需路由协议开销大且易断裂的问题,文中提出一种移动自组网基于地理位置信息的能量辅助路由协议LEAODV(Location-Energy-AODV).传统按需距离矢量协议以广播方式进行路由发现,路由开销大且未考虑节点能量耗尽而造成路由断裂问题.LEAODV路由协议考虑通信节点地理位置信...     

移动自组网能量保护策略研究进展

移动自组网是一组带有无线收发装置的移动节点组成的一个支持多跳的临时性的网络自治系统，由于移动自组网的大多数节点是由有限寿命的电池来提供的，因此能量保护策略成为该网络所有协议层的关键问题。本文回顾了移动自组网能量保护策略的研究进展，对有关策略进行了评述，最后结合跨层设计思想给出了基于跨层协同的能量保护构架及其包含的研究方向。     

Ad hoc网络路由协议的仿真及研究

Adhoc网络是一种由节点任意移动、拓扑结构动态、随机且快速变化的自组网。由于其复杂性和多样性,常规路由无法传输信息。所以自组网路由协议一直是无线网络研究中的热点之一。本文对Adhoc网络目前常用的路由协议在OPNET平台上进行了仿真,通过比较和研究网络吞吐量,延时和路由开销等性能参数分析出各路由协议适应的网络环境。     

飞行自组网路由协议的仿真与分析

飞行自组网是移动自组网的一个新的研究方向,它将移动自组网的思想拓展到空天领域。但由于节点的高动态性和拓扑结构快速变化等特点,飞行自组网对路由协议提出更多挑战,传统移动自组网路由协议的适用性有待验证。文章利用OMNe T++仿真工具,针对飞行器组网的特定场景,对多种路由协议进行仿真,分析对比了各协议性能,探讨了无人机自组网路由协议的优选问题。实验结果表明OLSR_ETX协议综合性能优于其他几类协议,更适用于飞行自组网场景,但它在节点需要动态入网时表现不佳,还需要进一步的优化。     

基于MANET的多路径路由协议分析与仿真

移动自组网MANET是由许多移动节点组成的无中心的、多跳的自组织网络,网络中的节点由于移动和能量耗尽可能会使得路径失效,因此传统的单路径协议效率并不高。本文介绍了自组网中最常用的AODV协议,重点对AOMDV多路径路由协议的路由机制和维护管理进行了探讨。最后使用NS2仿真软件对两种协议进行了比较,结果表明,在分组投递率和端到端延时方面,AOMDV比AODV更具优势。     

自组网技术及其互连

自组网是由一些带有无线收发装置的移动节点组成的一个多跳的临时自治系统。这种新型的通信支撑环境具有动态变化的拓扑结构,独特的网络特征使得其路由问题、安全问题、QoS等问题成为研究的重点。本文针对自组网技术的这些方面作了简单的介绍。     

移动自组网CBTC算法分析与研究

移动自组网中各移动节点的能量消耗比较大,而大多数节点都是由有限寿命的电 池来提供的,因此在制定路由协议时必须考虑其能量保护。拓扑控制算法通过控制结点的传 输范围使生成的网络拓扑满足一定的性质,以延长网络生命周期,降低网络干扰。详细分析了 cone-based拓扑控制算法(CBTC),及其进行改进以适应自组网移动性的特点。     

复杂网络环境下的DSR路由协议性能仿真

DSR是用于多跳无线Ad hoc网络的一个简单高效的路由协议,DSR协议由路由发现和路由维持两部分组成,允许节点在Ad hoc网络中发现、维持到任意节点的源路由.文章详细介绍了DSR协议的特点并利用Opnet Modeler 10.5构建了小规模(50节点)和大规模(100节点)复杂的(所有节点同时移动、所有节点既是源节点又是目的节点)移动自组网模型,通过改变节点移动速度及发送分组大小,对DSR路由算法的平均路由发现时间、平均路由长度、吞吐量、数据分组平均端到端的时延、及分组交付率在两种场景下进行了仿真分析和性能比较.     

MECOR: Minimal Energy Consumption with Optimized Routing in MANET

Energy and routing efficiency is a long-research topic from past decades in the area of MANET. The prior research contribution focusing on addressing both the issues are associated with issues like (1) few benchmarked studies, (2) adoption of conventional routing protocols based on shortest path to mitigate both issues, and (3) inefficient design principles of routing. Hence, this paper proposes a novel routing protocol in mobile ad hoc network (MANET) termed as MECOR i.e. minimal energy consumption with optimized routing. MECOR presents a simple communication strategy based on mathematical and signaling properties of mobile nodes in MANET to jointly address the energy and routing issues in MANET. The outcome of the MECOR was compared with conventional routing algorithm as well as recent studies of energy efficient routing policy to find that MECOR can minimize 58.82 % of energy in most challenging mobility scenarios of MANET.     

Mobility-Aware and Load Balancing Based Clustering Algorithm for Energy Conservation in MANET

Mobile ad hoc network (MANET) is one of wireless communication network architecture that has received a lot of attention. MANET is characterized by dynamic network topology and limited energy. With mobility-aware and load balancing based clustering algorithm (MLCA), this paper proposes a new topology management strategy to conserve energy. Performance simulation results show that the proposed MLCA strategy can balances the traffic load inside the whole network, so as to prolong the network lifetime, meanly, at the same time, achieve higher throughput ratio and network stability.     

Power Management Based Grid Routing Protocol for IEEE 802.11 Based MANET

MANET(Mobile Ad Hoc Network)is a collection of wireless mobile nodes forming a temporary communica-tion network without the aid of any established infrastructure or centralized administration.The lifetime of a MANETdepends on the battery resources of the mobile nodes.So energy consumption may one of important design criterions forMANET.With changing the idle model to sleep model in the grid environment,this paper proposes a new energy-awarerouting protocol.Performance simulation results show that the proposed strategy can dynamic balance the traffic load in-side the whole network,extend the lifetime of a MANET,and without decreasing the throughput ratio.     

Proficient link state routing in mobile ad hoc network-based deep Q-learning network optimized with chaotic bat swarm optimization algorithm

Mobile ad-hoc network (MANET) is a category of ad-hoc network that can be reconfigurable its network. MANETS are self-organized networks, that can use the wireless links to connect various networks via mobile nodes: but it consumes more energy and it also has routing problems. This is the major drawback of being connected with the MANET technology. Therefore, this study proposes a new protocol as deep Q-learning network optimized with chaotic bat swarm optimization algorithm (CBS)-based optimized link state routing (OLSR) (CBS-OLSR) for MANET. This protocol reduces MANET energy usage and adopts OLSR multi-point relay (MPR) technology. MANET's OLSR and the CBS algorithm utilize a similar method to locate the best optimum path from source to destination node. By embedding the new improved deep Q-learning and OLSR algorithms, both are used for optimizing the MPR sets selection, it can efficiently diminish the energy consumption in the network topology, but automatically increase the lifespan of the network. It also enhances the package delivery ratio and decreases end-to-end delay. The experimental outcomes prove that the proposed protocol is reliable and proficient that is appropriate for numerous MANET applications.     

移动自组网应用建模及无线收发器选用策略

移动自组网作为一种特殊的无线网络被越来越广泛的应用,随之也变得越来越复杂.所以不同的应用场景需要采用不同的配置来组建自组网,才能达到网络性能相对最优.其中网络连通性和能源问题成为重点需要考虑的因素.为了更加合理高效地组建自组网,本文定义了一种移动自组网应用模型,并采用此模型对自组网应用场景进行了分类,提出了一种组建自组网的方法,重点对无线收发器的选择进行了研究.     

分级MANET安全防护体系研究

介质开放、动态拓扑、能源限制等新特性使得MANET(Mobile Ad Hoc Network)安全形势较传统网络更为严峻。借鉴I-ADD[1]安全分析过程,研究MANET网络特性、不安全因素及面临的安全威胁。根据MANET的安全需求,针对形成控制核心的分级MANET,提出一套纵深防护体系方案。该方案主要包括三个重要部分:认证机制、IDS机制、综合安全管理平台。     

IoT energy efficiency routing protocol using FHO-based clustering and improved CSO model-based routing in MANET

Many protocols, services, and electrical devices with built-in sensors have been developed in response to the rapid expansion of the Internet of Things. Mobile ad hoc networks (MANETs) consist of a collection of autonomous mobile nodes that can form an ad hoc network in the absence of any pre-existing infrastructure. System performance may suffer due to the changeable topology of MANETs. Since most mobile hosts operate on limited battery power, energy consumption poses the biggest challenge for MANETs. Both network lifetime and throughput improve when energy usage is reduced. However, existing approaches perform poorly in terms of energy efficiency. Scalability becomes a significant issue in large-scale networks as they grow, leading to overhead associated with routing updates and maintenance that can become unmanageable. This article employs a MANET routing protocol combined with an energy conservation strategy. The clustering hierarchy is used in MANETs to maximize the network's lifespan, considering its limited energy resources. In the MANET communication process, the cluster head (CH) is selected using Fire Hawk Optimization (FHO). When choosing nodes to act as a cluster for an extended period, CH election factors in connectivity, mobility, and remaining energy. This process is achieved using an optimized version of the Ad hoc On-Demand Distance Vector (AODV) routing protocol, utilizing Improved Chicken Swarm Optimization (ICSO). In comparison to existing protocols and optimization techniques, the proposed method offers an extended network lifespan ranging from 90 to 160 h and reduced energy consumption of 80 to 110 J, as indicated by the implementation results.     

一种抑制MANET网关洪泛策略

在MANET子网互连架构中,其网关发现采用洪泛通告报文的方式,所形成的广播风暴引起较大控制开销。由此提出一种动态自适应网关发现协议,该协议可根据MANET的移动节点信息自适应设置网关通告报文GWADV的TTL值和发送间隔,同时采用基于距离门限的动态计数DDC网关洪泛通告报文抑制策略。仿真结果表明,该协议可以有效地应对网关洪泛通告报文的问题,在保持较高分组投递率的同时,能够减小时延和控制开销。     

MANET中一种基于Agent的能量节约方案

MANET是一种没有中心的特殊的移动自组织网络,由于节点依赖于电池,能量有限,因此节能是一个重要问题。文中提出的了一种基于Agent的能量节约方案,首先通过较少的移动Agent传递网络中节点的信息;然后根据各节点电池余量等参数,选择最合适的路径进行数据传输。从而可以节省整个网络的能耗,并保护剩余能量低的节点。实验结果表明这种方案可以延长整个网络的生存时间。