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基于NS2的Ad hoc网络路由协议性能分析比较 总被引:5,自引:0,他引:5
A d Hoc网络的路由协议是A d Hoc网络研究的关键问题,对于研究A d Hoc网络是至关重要的。本文采用网络仿真软件N S2评价移动自组网的路由协议。通过实例仿真,利用编写的脚本程序,对仿真结果进行分析,从而对移动自组网路由协议AODV(自组网按需路由协议)、DSR(动态源路由)以及DSDV(基于目的序号和距离矢量路由)的性能参数进行比较。 相似文献
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移动自组网是无中心、自组织、可快速展开、可移动的对等式网络,组播作为群组服务在移动自组网中应用广泛。移动自组网具有节点移动频繁、能源和带宽有限等特点,它要求组播协议能在节点频繁移动下具备良好的健壮性,传统的组播协议已不适用。文章介绍了移动自组网组播路由协议,描述了几种组播路由协议的基本运行过程,并对其性能进行了分析和比较,最后论述了组播协议在能源、安全、组播服务(QOS)、利用位置信息等方向的应用前景及面临的问题。 相似文献
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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。 相似文献
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MANET路由协议的最新发展 总被引:1,自引:0,他引:1
徐小涛 《电信工程技术与标准化》2007,20(3):27-30
由于移动Ad hoc网络(MANET)自身的特殊性,其路由协议的设计与传统固定网络有很大不同。本文在MANET路由协议的设计原则的基础上,分析了几种典型的MANET路由协议的特点,并对MANET路由协议未来的发展方向作出了展望。 相似文献
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A Shoelace-Based QoS Routing Protocol for Mobile Ad Hoc Networks Using Directional Antenna 总被引:1,自引:0,他引:1
In this paper, we propose a new quality-of-service (QoS) routing protocol for mobile ad hoc network (MANET) using directional
antennas. The proposed scheme offers a bandwidth-based routing protocol for QoS support in MANET using the concept of multi-path.
Our MAC sub-layer adopts the CDMA-over-TDMA channel model. The on-demand QoS routing protocol calculates the end-to-end bandwidth
and allocates bandwidth from the source node to the destination node. The paths are combined with multiple cross links, called
shoelace, when the network bandwidth is strictly limited. Due to the property of the directional antenna, these cross links
can transmit data simultaneously without any data interference. We develop a shoelace-based on-demand QoS routing protocol
by identifying shoelaces in a MANET so as to construct a QoS route, which satisfied the bandwidth requirement, more easily.
The shoelace-based route from the source to the destination is a route whose sub-path is constructed by shoelace structure.
With the identified shoelaces, our shoelace-based scheme offers a higher success rate to construct a QoS route. Finally, simulation
results demonstrate that the proposed routing protocol outperform existing QoS routing protocols in terms of success rate,
throughput, and average latency. 相似文献
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Ramanna Havinal Girish V. Attimarad M. N. Giri Prasad 《Wireless Personal Communications》2016,88(4):963-983
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. 相似文献
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本文提出了一种Mobile Ad hoc网络(Manet)链路状态分组路由算法(Link State-hased Cluster Routing Algo-rithm-LSCR),该算法对Manet节点进行动态分组,每一组选举出一个具有最大度数的头结点(CH-Cluster Header),该cH负责本组信息的管理、组内结点与组外结点之间的通信以及与其他组的CH之间交换链路状态信息等工作.本算法将改进的链路状态协议与分组路由协议有机结合,有效提高了Manet网络的路由效率.分析和实验结果表明,这种算法具有路由收敛速度快、维护成本相对较低,数据包发送成功率高,发送等待时间短等特点。 相似文献
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On-demand routing protocols are widely used in mobile Ad-hoc network (MANET). Flooding is an important dissemination scheme in routing discovering of on-demand routing protocol. However, in high-density MANET redundancy flooding packets lead to dramatic deterioration of the performance which calls broadcast storm problem (BSP). A location-aided probabilistic broadcast (LAPB) algorithm for routing in MANET is proposed to reduce the number of routing packets produced by flooding in this paper. In order to reduce the redundancy packets, only nodes in a specific area have the probability, computed by location information and neighbor knowledge, to propagate the routing packets. Simulation results demonstrate that the LAPB algorithm can reduce the packets and discovery delay (DD) in the routing discovery phase. 相似文献