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多路径路由协议emp—aomdv的研究与实现  [PDF]
邬春学 杨朝梁?
计算机科学 , 2009,
Abstract: 为了减少建立路由所产生的延时,aodv路由协议允许拥有积极路由的中间节点响应路由请求,而不考虑该节点当时的负荷,这样虽然快速地建立了路由,但并不一定能有效地传输数据。针对这一问题,在aodv的基础上对一种多路径路由方法mp-aomdv进行了优化。这种优化的协议我们称为emp-aomdv(enhancedadhocondemandmulti-pathvectorroutingprotocol)。结果表明改进的协议和原协议相比,降低了端到端的延时和丢包率,提高了传输效率。
Performance Evaluation and Comparison of AODV and AOMDV
S. R. Biradar,Koushik Majumder,Subir Kumar Sarkar,Puttamadappa C
International Journal on Computer Science and Engineering , 2010,
Abstract: A Mobile Ad-hoc Network (MANET) is a dynamic wireless network that can be formed without the need for any pre-existing infrastructure in which each node can act as a router. One of the main challenges of MANET is the design of robust routing algorithms that adapt to the frequent and randomly changing network topology. A variety of routingprotocols have been proposed and several of them have been extensively simulated or implemented as well. In this paper, we compare and evaluate the performance of two types of Ondemand routing protocols- Ad-hoc On-demand Distance Vector (AODV) routing protocol, which is unipath and Adhoc On-demand Multipath Distance Vector (AOMDV)routing protocol. In this paper we note that on comparing the performance of AODV and AOMDV, AOMDV incurs more routing overhead and packet delay than AODV but it had a better efficiency when it comes to number of packets dropped and packet delivery.
Performance issues on AODV and AOMDV for MANETS  [PDF]
Balakrishna.R,Rajeswar Rao.U,Geethanjali.N
International Journal of Computer Science and Information Technologies , 2010,
Abstract: One of the main challenges of MANET is the design of robust routing algorithms that adapt to the frequent and randomly changing networktopology. A variety of routing protocols have been proposed and several have been extensively simulated. In this paper, we compare and evaluate the performance of two types of On demand routing protocols- Ad-hoc On-demand Distance Vector (AODV) routing protocol, which is uni path and Ad hoc On-demand Multi path Distance Vector (AOMDV) routing protocol. We note that on comparing the performance of AODV and AOMDV,AOMDV incurs more routing overhead and packet delay than AODV but it had a better efficiency when it comes to number of packets dropped andpacket delivery.
aodv和aomdv路由协议性能分析与比较  [PDF]
王鲁光,贾智平,李新
计算机应用 , 2010,
Abstract: ?移动无线自组网(manet)作为一种典型的自组织网络,其路由协议一直是研究的重点。介绍了无线自组网按需平面距离矢量路由(aodv)协议和无线自组网按需多路径距离矢量路由(aomdv)协议的特点,在ns2模拟软件中使用多种测试场景和不同的介质访问控制(mac)层协议对这两种路由协议的性能进行了测试和分析。实验结果表明,aomdv协议在平均延时和路由发现频率上优于aodv协议,在分组投递率和归一化路由开销方面的性能低于aodv协议。
Analysis of Quality of Service for the AOMDV Routing Protocol
V. B. Kute,M. U Kharat
Engineering, Technology & Applied Science Research , 2013,
Abstract: Due to the dynamic nature of Mobile Ad-hoc Networks (MANETs), the provision of Quality of Service (QoS) guarantees is challenging. The route failure probability in a MANET is increased due to the mobility of nodes, which increases routing overhead. Multi-path routing protocols have relatively greater ability to reduce the routing overheads. This paper discuses the performance analysis of the Ad-hoc On-Demand Multi-Path Distance Vector (AOMDV) routing protocol. AOMDV is a multi-path extension of a very well known single path routing protocol, (AODV). Extensive simulations were carried out using ns-2.34 and the study concluded that for CBR traffic AOMDV performance degrades as the data packet generation rate increases.
An Improved AOMDV Routing Protocol for Airspace Communication Network  [PDF]
Xi Zhang, Tao Zhang
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2017, DOI: 10.4236/ijcns.2017.108B017
Abstract:
The airspace communication network based on spacecraft has a wide range of applications in regional information enhancement and emergency communication. In this paper, a routing algorithm for congestion degree detection of multipath routing (CD_AOMDV) is proposed. The method of combining the whole congestion degree detection and local congestion degree detection before service initiation is adopted. Timely and accurate judgment of the congestion degree reduced the loss rate of the hot nodes, so the average packet loss rate reduced. Simulation results show that compared with the traditional AOMDV protocol, the CD_AOMDV proposed in this paper has reduced the packet loss and improved delay performance, which is more suitable for the airspace communication network.
Effect of node mobility on AOMDV protocol in MANET  [PDF]
Indrani Das,D. K Lobiyal,C. P Katti
Computer Science , 2014, DOI: 10.5121/ijwmn.2014.6307
Abstract: In this paper, we have analyzed the effect of node mobility on the performance of AOMDV multipath routing protocol. This routing protocol in ad hoc network has been analyzed with random way point mobility model only. This is not sufficient to evaluate the behavior of a routing protocol. Therefore, in this paper, we have considered Random waypoint, Random Direction and Probabilistic Random Walk mobility Model for performance analysis of AOMDV protocol. The result reveals that packet delivery ratio decreases with the increasing node mobility for all mobility models. Also, average end-to-end delay is also vary with varying node speed, initially upto 20 nodes in all mobility models delay is minimum.
Impact of link breaks on AODV and AOMDV in MANET: A Performance Analysis
Lino Murali,Divya T V
International Journal of Electronics and Computer Science Engineering , 2013,
Abstract: MANETs are ad hoc multi hop networks, formed of mobile battery chargeable devices and commonly used in emergency situations. With its dynamic topology and limited energy level they often come across with link breaks. This paper analyzes how energy consumption of the mobile devices and density of mobile nodes affects the performance of MANET. AODV and AOMDV are reactive routing protocols used in MANET which handles link break due to node mobility and energy drain. Performance of AODV and AOMDV is analyzed in presence of link breaks using ns2 simulator. The results show AOMDV has better performance in throughput, end to end delay and packet delivery ratio compared to AODV only in presence of large network size and high mobility of nodes. Energy consumption and normalized routing load is high for AOMDV compared to AODV for all scenarios.
Congestion based Route Discovery AOMDV Protocol
Onkar Singh Bawa, Mr. Supratik Banerjee
International Journal of Computer Trends and Technology , 2013,
Abstract: MANET is used to provide communication between nodes. There is no central authority which control communication session between nodes means there is not any defined infrastructure. Nodes moves frequently in the network which generate some issues like routing, coverage, congestion and security issues. To provide optimization in network different routing protocols are used in MANET. We propose a load balancing approach in AOMDV (Adhoc OnDemand Multipath Distance Vector Routing) protocol that use Queues, which are used for congestion monitoring. Route establishment are based on that queues result. We used for network simulation NS2 to simulate our work. The simulation result shows that proposed work is improved to basic protocol. The proposed solution is work better in delay, throughput and packet lost.
Improved Stability Based Partially Disjoint AOMDV  [PDF]
Wesam Almobaideen, Dimah Al-Khateeb, Azzam Sleit, Mohammad Qatawneh, Khadejeh Qadadeh, Rasha Al-Khdour, Hadeel Abu Hafeeza
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2013, DOI: 10.4236/ijcns.2013.65027
Abstract:

Mobile Ad-hoc network (MANET) is an infrastructure-less and dynamic network. Routing in such a network is a challenge due to the mobility of its nodes. Multipath routing protocols try to improve the performance by finding more than one path towards the destination which could be kept as alternatives should the main path breaks. Stability-based Partially Disjoint AOMDV (SPDA) protocol has been proposed to tackle problems resulted from the very dynamic topology of MANETs. SPDA finds partially disjoint paths that are more stable than the maximally disjoint ones in order to increase paths lifetime as well as the availability of such multipaths. When choosing partially disjoint paths, SPDA does not take into consideration the number of hops of each path. Moreover, SPDA transmits packets over the shortest path until it becomes invalid before it tries to utilize other alternative paths. In this paper we improve SPDA by adding the number of nodes each path passes through to the selection criteria. In the Improved SPDA (ISPDA), the available alternative paths have been utilized to transmit packets in parallel. We compare the SPDA and ISPDA regarding the throughput and delay. Results show the superiority of ISPDA over the original one.

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