MANET

摘要： 针对软件定义网络在移动自组织网络里部署传输路径时,需要控制器为路径上所有的节点下发相关流表项,从而造成传输开始需等待较长时间的问题,文中基于分段路由提出了一种快速下发数据转发规则的方法FDSR。控制器会以分段路由的方式,通过在数据包上添加转发路径对应标签的方式下发数据转发规则,并在处理最大堆栈深度问题时,利用标签粘连技术,将整条路径分为多个标签栈,通过算法选择后分别下发给能与控制器节点快速交互的转发节点,以减少路径配置时间。实验结果表明,相较于OpenFlow流表下发方式,FDSR在SD-MANET中能减少路径部署时长以及流表开销,并能有效应对SR的MSD问题,提升控制器部署长路径的速度。

摘要： A mobile ad hoc network(MANET)involves a group of wireless mobile nodes which create an impermanent network with no central authority and infrastructure.The nodes in the MANET are highly mobile and it results in adequate network topology,link loss,and increase the re-initialization of the route discovery process.Route planning in MANET is a multi-hop communication process due to the restricted transmission range of the nodes.Location aided routing(LAR)is one of the effective routing protocols in MANET which suffers from the issue of high energy consumption.Though few research works have focused on resolving energy consumption problem in LAR,energy efficiency still remains a major design issue.In this aspect,this study introduces an energy aware metaheuristic optimization with LAR(EAMO-LAR)protocol for MANETs.The EAMO-LAR protocol makes use of manta ray foraging optimization algorithm(MRFO)to help the searching process for the individual solution to be passed to the LAR protocol.The fitness value of the created solutions is determined next to pass the solutions to the objective function.The MRFO algorithm is incorporated into the LAR protocol in the EAMO-LAR protocol to reduce the desired energy utilization.To ensure the improved routing efficiency of the proposed EAMO-LAR protocol,a series of simulations take place.The resultant experimental values pointed out the supreme outcome of the EAMO-LAR protocol over the recently compared methods.The resultant values demonstrated that the EAMO-LAR protocol has accomplished effectual results over the other existing techniques.

摘要： The 5G demonstrations in a business has a significant role in today’s fast-moving technology.Manet in 5G,drives a wireless system intended at an enormously high data rate,lower energy,low latency,and cost.For this reason,routing protocols of MANET have the possibility of being fundamentally flexible,high performance,and energy-efficient.The 5G communication aims to afford higher data rates and significantly low Over-The-Air latency.Motivated through supplementary ACO routing processes,a security-aware,fuzzy improved ant colony routing optimization protocol is proposed in MANETs.The goal is to develop aMANET routing protocol that could provide a stable packet transmission ratio,less overhead connectivity,and low end-to-end latency in shared standard scenarios and attack states.MANET demonstrates effective results with hybrid architecture and proved to be effective than other state-of-the-art routing protocols of MANETs,like AODV,its routing organization implemented through Optimized Fuzzy based ACO Algorithm for 5G.Millimeter-wavelengths are required to perform a significant role in 5G.This research proposed to test the efficiency of MANET consisting of only mmWave User Equipment.MANET reduced packet transmission loss of UEs withmmWave,meaning well-transmitted SNR leads directly to a better packet delivery ratio.To verify results,simulation using the NS-3 simulator mmWave module is used.

摘要： Mobile Ad hoc Networks(MANETs)have always been vulnerable to Sybil attacks in which users create fake nodes to trick the system into thinking they’re authentic.These fake nodes need to be detected and deactivated for security reasons,to avoid harming the data collected by various applications.The MANET is an emerging field that promotes trust management among devices.Transparency is becoming more essential in the communication process,which is why clear and honest communication strategies are needed.Trust Management allows for MANET devices with different security protocols to connect.If a device finds difficulty in sending a message to the destination,the purpose of the communication process won’t be achieved and this would disappoint both that device and all of your devices in general.This paper presents,the Two-Tier Multi-Trust based Algorithm for Preventing Sybil Attacks in MANETs(TMTACS).The TMTACS provides a two-tier security mechanism that can grant or revoke trust in the Nodes of the MANET.It’s a smart way to identify Sybil nodes in the system.A proficient cluster head selection algorithm is also defined,which selects cluster head efficiently and does load balancing to avoid resource consumption from a single node only.Also,for routing efficient path is selected to deteriorate energy consumption and maximize throughput.The recent technique is compared with Secured QoS aware Energy Efficient Routing(SQEER),Adaptive Trust-Based Routing Protocol(ATRP),and Secure Trust-Aware Energy-Efficient Adaptive Routing(STEAR)in terms of Packet Delivery Ratio(PDR),consumption of energy etc.The simulation was performed on MATrix LABoratory(MATLAB)and the results achieved by the present scheme are better than existing techniques.

摘要： In this paper, the impact of atmospheric turbulence is investigated and analyzed for the Free Space Optical Mobile Ad Hoc Networks (FSO MANET) using the Network Simulator NS-3. The FSO channel random intensity fluctuations have been modeled using the Exponentiated Weibull (EW) distribution. Further, the FSO module has been implemented and integrated with NS3 using the FSO propagation model and the FSO error models. The computation of the key performance indicators (KPI) mainly the throughput and the packet delivery ratio (PDR) shows that the network density affects the network performance. Its effect was illustrated for the different turbulence regimes, strong and weak. It is found that the throughput and PDR values decrease as the number of mobile nodes becomes larger. For instance, at 150 kbps and in the presence of strong turbulence with 25, 50, and 75 nodes, the PDRs are 77%, 76%, and 73% respectively. Moreover, the throughput and PDR values in the strong turbulence regime are lower than those in the weak turbulence regime for the same date rate. The throughput in the strong turbulence regime with 75 mobile nodes at the data rate 150 kbps is 2100 kbps while it is 2300 kbps in the weak turbulence mode at the same rate.

摘要： 移动无线自组织网络(MANET)路由协议包括表驱动路由协议、按需路由协议和地理位置信息路由协议等,针对路由协议抽象和难以理解的问题,采用NS-3仿真平台,设计了多组实验项目,对3种典型路由协议的工作原理进行了仿真实现.考虑不同应用场景下的节点密度、节点速度以及仿真区域大小等问题,设置随机移动模型的参数,分别对DSDV、AODV和GPSR的端到端时延、分组投递率和吞吐量进行实验对比分析,得出不同路由协议的优缺点以及所适应的应用场景,为不同网络环境下路由协议的选择提供一定的参考,提高了实验教学效果和质量.

摘要： 移动无线自组织网络是具有动态特性的通信网络,其节点数量多且拓扑频繁变化,搭建真实的实验平台难度较大,这将影响学生对理论知识的掌握.采用NS-3仿真平台,设置实验仿真场景、编写仿真脚本,对OLSR路由协议设计了一组相关的实验项目,分别从节点运行时间、节点最大移动速度和节点数量来观察协议的运行情况.实验结果验证了路由协议的基础理论,通过仿真结果分析,使学生更加形象直观地理解OLSR路由协议工作原理,促进了网络实验教学方式的多样化,提高了教学质量和效果.

摘要： Networking is one of the major areas in which technology is running. Networking plays a vital role in communications for the past few decades. Nodes are the important connections in the network. One of the main parameters considered in the node is power. Power is limited for the nodes in MANET, which is used for some operations where the node energy is not exhausted. Power obligations always affect the systems which ultimately affects the connectivity in the network. Mobility and congestion of nodes are also affected by power problems which simultaneously have some effects like link failures, packet losses which lead some problems in QoS performance of the protocol. This research combines BEMRT (Balanced and Energy Efficient Multipath Routing) with Robust Transmission in MANET. This combination will help the network to survive the problems discussed above which depend on the route discovery mechanism FF-AOMDV. The proposed algorithm will increase the connectivity from end to end and also minimizes the errors at all. Neighbor node selection method is considered with efficient energy which generates multiple paths from source to destination. A stable path is found by the node with effective load balancing. The mechanism is simulated and the protocol FF-AOMDV is compared with AOMDV and AOMRLM with concerning PDR (packet delivery ratios), routing overhead, delay, energy consumption, network lifetime, and throughput.

摘要： Broadcasting is a basic technique in Mobile ad-hoc network(MANET),and it refers to sending a packet from one node to every other node within the transmission range.Flooding is a type of broadcast where the received packet is retransmitted once by every node.The naive flooding technique,floods the network with query messages,while the random walk technique operates by contacting the subsets of every node’s neighbors at each step,thereby restricting the search space.One of the key challenges in an ad-hoc network is the resource or content discovery problem which is about locating the queried resource.Many earlier works have mainly focused on the simulation-based analysis of flooding,and its variants under a wired network.Although,there have been some empirical studies in peer-to-peer(P2P)networks,the analytical results are still lacking,especially in the context of P2P systems running over MANET.In this paper,we describe how P2P resource discovery protocols perform badly over MANETs.To address the limitations,we propose a new protocol named ABRW(Address Broadcast Random Walk),which is a lightweight search approach,designed considering the underlay topology aimed to better suit the unstructured architecture.We provide the mathematical model,measuring the performance of our proposed search scheme with different widely popular benchmarked search techniques.Further,we also derive three relevant search performance metrics,i.e.,mean no.of steps needed to find a resource,the probability of finding a resource,and the mean no.of message overhead.We validated the analytical expressions through simulations.The simulation results closely matched with our analyticalmodel,justifying our findings.Our proposed search algorithm under such highly dynamic self-evolving networks performed better,as it reduced the search latency,decreased the overall message overhead,and still equally had a good success rate.

摘要： One of the key challenges in ad-hoc networks is the resource discovery problem.How efciently&quickly the queried resource/object can be resolved in such a highly dynamic self-evolving network is the underlying question?Broadcasting is a basic technique in the Mobile Ad-hoc Networks(MANETs),and it refers to sending a packet from one node to every other node within the transmission range.Flooding is a type of broadcast where the received packet is retransmitted once by every node.The naive ooding technique oods the network with query messages,while the random walk scheme operates by contacting subsets of each node’s neighbors at every step,thereby restricting the search space.Many earlier works have mainly focused on the simulation-based analysis of ooding technique,and its variants,in a wired network scenario.Although,there have been some empirical studies in peer-to-peer(P2P)networks,the analytical results are still lacking,especially in the context of mobile P2P networks.In this article,we mathematically model different widely used existing search techniques,and compare with the proposed improved random walk method,a simple lightweight approach suitable for the non-DHT architecture.We provide analytical expressions to measure the performance of the different ooding-based search techniques,and our proposed technique.We analytically derive 3 relevant key performance measures,i.e.,the avg.number of steps needed to nd a resource,the probability of locating a resource,and the avg.number of messages generated during the entire search process.

摘要： 本文在深入研究野外和战时条件下，装备故障信息传递的特点和要求，以移动自组网作为基础网络设施，提出了基于分簇算法的故障申告协议，描述了协议过程，并在此协议基础上进一步给出了分簇故障申告模型，详细描述了模型的系统结构以及所采用的路由协议。此模型能较好地适应野外和战时条件下，装备故障信息传递的要求，通信量小、路由控制开销低、故障信息传播速度快。

摘要： 本文在深入研究野外和战时条件下，装备故障信息传递的特点和要求，以移动自组网作为基础网络设施，提出了基于分簇算法的故障申告协议，描述了协议过程，并在此协议基础上进一步给出了分簇故障申告模型，详细描述了模型的系统结构以及所采用的路由协议。此模型能较好地适应野外和战时条件下，装备故障信息传递的要求，通信量小、路由控制开销低、故障信息传播速度快。

摘要： 本文在深入研究野外和战时条件下，装备故障信息传递的特点和要求，以移动自组网作为基础网络设施，提出了基于分簇算法的故障申告协议，描述了协议过程，并在此协议基础上进一步给出了分簇故障申告模型，详细描述了模型的系统结构以及所采用的路由协议。此模型能较好地适应野外和战时条件下，装备故障信息传递的要求，通信量小、路由控制开销低、故障信息传播速度快。

摘要： 本文在深入研究野外和战时条件下，装备故障信息传递的特点和要求，以移动自组网作为基础网络设施，提出了基于分簇算法的故障申告协议，描述了协议过程，并在此协议基础上进一步给出了分簇故障申告模型，详细描述了模型的系统结构以及所采用的路由协议。此模型能较好地适应野外和战时条件下，装备故障信息传递的要求，通信量小、路由控制开销低、故障信息传播速度快。

摘要： 本文在深入研究野外和战时条件下，装备故障信息传递的特点和要求，以移动自组网作为基础网络设施，提出了基于分簇算法的故障申告协议，描述了协议过程，并在此协议基础上进一步给出了分簇故障申告模型，详细描述了模型的系统结构以及所采用的路由协议。此模型能较好地适应野外和战时条件下，装备故障信息传递的要求，通信量小、路由控制开销低、故障信息传播速度快。

摘要： 本文在深入研究野外和战时条件下，装备故障信息传递的特点和要求，以移动自组网作为基础网络设施，提出了基于分簇算法的故障申告协议，描述了协议过程，并在此协议基础上进一步给出了分簇故障申告模型，详细描述了模型的系统结构以及所采用的路由协议。此模型能较好地适应野外和战时条件下，装备故障信息传递的要求，通信量小、路由控制开销低、故障信息传播速度快。

摘要： 移动自组织网络(MANET)是由若干移动站点在不依赖任何固定网络基础设施的条件下组成的无线多跳自生成、自适应网络.它通常采用分布式介质接入控制(MAC)协议来协调站点问对共享无线信道的接入.针对移动自组织网络MAC协议面临的问题:隐藏终端、暴露终端、移动终端和QoS机制,归纳分析了多种已提出的MAC协议.通过对现有技术特点的了解和剖析,为自组网MAC协议的进一步深入研究和应用选择提供参考.

摘要： 移动自组织网络(MANET)是由若干移动站点在不依赖任何固定网络基础设施的条件下组成的无线多跳自生成、自适应网络.它通常采用分布式介质接入控制(MAC)协议来协调站点问对共享无线信道的接入.针对移动自组织网络MAC协议面临的问题:隐藏终端、暴露终端、移动终端和QoS机制,归纳分析了多种已提出的MAC协议.通过对现有技术特点的了解和剖析,为自组网MAC协议的进一步深入研究和应用选择提供参考.

摘要： 移动自组织网络(MANET)是由若干移动站点在不依赖任何固定网络基础设施的条件下组成的无线多跳自生成、自适应网络.它通常采用分布式介质接入控制(MAC)协议来协调站点问对共享无线信道的接入.针对移动自组织网络MAC协议面临的问题:隐藏终端、暴露终端、移动终端和QoS机制,归纳分析了多种已提出的MAC协议.通过对现有技术特点的了解和剖析,为自组网MAC协议的进一步深入研究和应用选择提供参考.

摘要： 移动自组织网络(MANET)是由若干移动站点在不依赖任何固定网络基础设施的条件下组成的无线多跳自生成、自适应网络.它通常采用分布式介质接入控制(MAC)协议来协调站点问对共享无线信道的接入.针对移动自组织网络MAC协议面临的问题:隐藏终端、暴露终端、移动终端和QoS机制,归纳分析了多种已提出的MAC协议.通过对现有技术特点的了解和剖析,为自组网MAC协议的进一步深入研究和应用选择提供参考.

摘要： 本发明属于MANET网络通信领域，涉及一种基于SVM的MANET主动路由方法。该方法包括：基于SVM构建信标模型，输入为节点及其邻居节点的传感器信息，输出为信标预发送周期；基于SVM的信标模型实时得到的信标预发送周期，基于移动模型得到链路剩余时间，信标发送周期自适应机制综合信标发送周期与链路剩余时间确定信标发送周期；根据信标发送周期自适应得到的信标发送周期，路由信息更新机制周期在一跳邻域内广播信标消息，同时确定邻居节点稳定性，根据邻居节点稳定性与接收的消息更新不同的路由信息。本发明解决了目前的MANET主动路由方法路由发现效率低、路由断裂发现不及时以及网络拓扑高动态变化适应性不高的问题。

摘要： 本发明属于无线通信技术领域，公开了一种MANET网络动态时隙分配方法、系统、设备及应用，包括：源节点确定相关参数、源节点填写业务流表并发送时隙预约请求分组、中间节点接收时隙预约请求分组、目的节点接收时隙预约请求分组、中间节点接收时隙预约回复分组、源节点接收时隙预约回复分组和预约链路拆除。本发明使用时隙资源申请预留方法，根据节点发送与侦听时隙预约请求分组，实现MANET网络时隙资源动态分配。本发明通过节点不断维护业务流表，得到两跳内业务时隙占用情况，发现并释放无效业务流占用时隙，克服了没有考虑节点移动性影响与时隙利用率低等问题，支持并发、汇聚和并行业务，实现两跳外时隙复用，提高时隙资源利用率。

摘要： 本发明公开了一种MANET环境下基于命名数据网络的路由策略更新方法，包括：移动节点检测到自身由第一节点向第二节点移动时，判断第一节点或第二节点是否收到移动节点发出的位置更新兴趣包，若第一节点收到位置更新信息后，如果直接与第二节点相连，则直接更新自身FIB信息，否则将此信息转发邻接节点，并将该条FIB的对应条目参数设为待决。若第二节点收到该信息后，若直接与第一节点相连，则不动作，否则第二节点通知其邻接节点，如其中某一邻接节点存在匹配的待决条目，则更新FIB，否则邻接节点继续广播寻找。通过本发明的技术方案，提升了兴趣包响应率，降低了获取数据包的延时，进而有效减少了由于节点移动导致的服务中断情况，并提高了网络性能。

摘要： 本发明公开了无线通信技术领域的一种增强无人机MANET网络安全性的方法，该种增强无人机MANET网络安全性的方法具体步骤如下：S1：无人机节点之间双向身份认证，S1.1：无人机节点B向无人机节点A发送身份认证请求，S1.2：无人机节点B响应无人机节点A身份认证请求，S1.3：无人机节点B向无人机节点A发送身份认证请求，S1.4：无人机节点A响应无人机节点B身份认证请求，S2：协商对称主密钥，S3：生成会话密钥，S4：生成数字签名：无人机节点A需要对消息M进行签名，然后将消息签名σ和消息M一同发送给无人机节点B，节点B验证签名的正确性，采用双密钥的形式，通过微不足道的计算量能够很好地克服密钥托管问题以及恶意节点逆向推导泄露系统私钥的可能性。

摘要： 本发明涉及一种加密MANET中用户类型的识别方法。方法首先对MANET网络中的子网进行分选；根据子网分选结果利用无线电定位对网络中节点进行区分；在网络节点已区分的基础上对中继转发节点进行识别；基于流量测量进行加密MANET业务类型识别；针对业务类型识别结果对用户类型进行识别。本识别方法解决现有用户类型识别方法需要大量的历史数据，识别速度较慢，且无法应用于加密MANET的问题。

摘要： 本发明提供了一种提升MANET多媒体业务Qos的时隙管理方法及系统，包括：步骤S1：根据时隙申请策略判定是否申请时隙；步骤S2：为需要申请时隙资源的多媒体业务申请并预留时隙；步骤S3：在已经申请和预留的时隙上发送数据包；步骤S4：在固定时间段内一直没有数据包需要发送的预留时隙，释放时隙资源；当步骤S1判决不需要申请时隙资源时直接跳转步骤S3。本发明可以保证时延最小，特别是多跳传输时，时延累积效应更加明显；时隙资源预留，可以保证在多媒体业务数据传输期间，传输路径上的所有节点无需频繁申请和释放时隙资源，从而有效减少端到端传输时延。

摘要： 本发明公开了命名数据MANET网络中一种降低冗余数据包传输方法，在兴趣包中增加一个应答字段，ACK。该字段中含有已经被请求者收到的内容的名字，记作Name‑ack。收到该兴趣包的节点，会检查自己的PIT表中是否有等待Name‑ack的表项，如果有，则删除。当节点收到迟到的应答数据包时就会丢弃，不会再做转发。如果此时重复的应答数据包到达，则会因为没有响应的PIT项而被丢掉，不再继续转发，因而可以减少重复应答数据包在网络中的数量。与现有技术相比较，本发明在于命名数据MANET网络中，阻断其它关于该兴趣请求冗余数据包的转发，节约了网络流量，提升了命名数据MANET网络的整体性能。

摘要： 本发明提供一种基于OLSR路由协议的MANET快速组网方法。该方法应用于无线自组织网络的各节点上，采用阶梯式可变发送周期，在节点的开机阶段、过渡阶段、稳定阶段分别采用不同的路由消息发送周期。本发明利用阶梯式可变发送周期，在节点入网阶段缩短发送周期，加快本节点和邻节点的拓扑信息在全网的广播，从而加快组网速度；在网络较为稳定时，采用常规路由消息发送周期，避免造成网络拥塞，从而在加快入网速度的同时，不会引起稳态场景下路由开销的突增。

摘要： 本发明属于MANET网络通信领域，涉及一种基于SVM的MANET主动路由方法。该方法包括：基于SVM构建信标模型，输入为节点及其邻居节点的传感器信息，输出为信标预发送周期；基于SVM的信标模型实时得到的信标预发送周期，基于移动模型得到链路剩余时间，信标发送周期自适应机制综合信标发送周期与链路剩余时间确定信标发送周期；根据信标发送周期自适应得到的信标发送周期，路由信息更新机制周期在一跳邻域内广播信标消息，同时确定邻居节点稳定性，根据邻居节点稳定性与接收的消息更新不同的路由信息。本发明解决了目前的MANET主动路由方法路由发现效率低、路由断裂发现不及时以及网络拓扑高动态变化适应性不高的问题。

摘要： 本发明属于无线通信技术领域，公开了一种MANET网络动态时隙分配方法、系统、设备及应用，包括：源节点确定相关参数、源节点填写业务流表并发送时隙预约请求分组、中间节点接收时隙预约请求分组、目的节点接收时隙预约请求分组、中间节点接收时隙预约回复分组、源节点接收时隙预约回复分组和预约链路拆除。本发明使用时隙资源申请预留方法，根据节点发送与侦听时隙预约请求分组，实现MANET网络时隙资源动态分配。本发明通过节点不断维护业务流表，得到两跳内业务时隙占用情况，发现并释放无效业务流占用时隙，克服了没有考虑节点移动性影响与时隙利用率低等问题，支持并发、汇聚和并行业务，实现两跳外时隙复用，提高时隙资源利用率。