scholarly journals Impact of Node Movement on MANET Using Different Routing Protocol for QoS Improvement under Different Scenario

2012 ◽  
pp. 297-303
Author(s):  
Aditi Kumari ◽  
Neha Gandotra ◽  
Pankaj Joshi ◽  
Shrikant Upadhyay
Keyword(s):  
Routing Protocol ◽  
Ad Hoc ◽  
Node Mobility ◽  
Wireless Devices ◽  
Topology Changes ◽  
Dynamic Topology ◽  
Mobile Ad Hoc ◽  
Change Position ◽  
Hoc Networks ◽  
Mobile Computers

As in real world the movement of nodes are almost always random. And the most important characteristics is the dynamic topology which is a consequence of node mobility, nodes can change position quite frequently, which means we need a routing protocol that quickly adapts to topology changes. Now, days there are more than billion wireless devices in use. And every devices are topology independent. Therefore, the wireless mobile computers or Mobile Ad Hoc Networks (MANET) have become very necessary.

scholarly journals A Hop Count Based Heuristic Routing Protocol for Mobile Delay Tolerant Networks

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Lei You ◽  
Jianbo Li ◽  
Changjiang Wei ◽  
Chenqu Dai ◽  
Jixing Xu ◽  
...  
Keyword(s):  
Routing Protocol ◽  
Ad Hoc ◽  
Delay Tolerant Networks ◽  
Network Partitioning ◽  
Heuristic Function ◽  
Hop Count ◽  
Dynamic Topology ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
Delay Tolerant

Routing in delay tolerant networks (DTNs) is a challenge since it must handle network partitioning, long delays, and dynamic topology. Meanwhile, routing protocols of the traditional mobile ad hoc networks (MANETs) cannot work well due to the failure of its assumption that most network connections are available. In this paper, we propose a hop count based heuristic routing protocol by utilizing the information carried by the peripatetic packets in the network. A heuristic function is defined to help in making the routing decision. We formally define a custom operation for square matrices so as to transform the heuristic value calculation into matrix manipulation. Finally, the performance of our proposed algorithm is evaluated by the simulation results, which show the advantage of such self-adaptive routing protocol in the diverse circumstance of DTNs.

scholarly journals Study the effect of sound encodings on AD-HOC networks using TORA routing protocol and VOIP application: دراسة تأثير ترميزات الصوت على شبكات AD-HOCباستخدام بروتوكول التوجيه TORA وتطبيق VOIP

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Suleiman Zidan Aldarf, Jamal Al-yassin
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Data Transfer ◽  
Node Mobility ◽  
Small Areas ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile Ad-Hoc Networks are used for data transfer. The nodes of such networks do not require presetting. They are characterized by dynamic data transfer during their movement of the nodes.  Routing protocols of mobile ad-hoc networks differ from the existing internet protocols which are designed for the fixed structure based wireless networks. MANET protocols have to face high challenges due to dynamically changing of topologies, low transmission power and asymmetric links. Due to link instability, node mobility and frequently changing topologies routing becomes one of the core issues in MANETs. Currently existent routing protocols provide routing solutions up to a certain level and most of them are designed and implemented in small areas. Many researchers are still working on the developments of MANET routing protocols. This research study effect of some voice codecs on ad-hoc networks using the (TORA routing protocol) and by running the VOIP application on a network randomized scenario. This effect will be compared through several performance parameters for the network used. The Network Simulation Program (OPNET), which is the first program in the area of telecommunications networks in general, is used to provide accurate results for studies in the field of networks.  

A Study of Speed Aware Routing for Mobile Ad Hoc Networks

2013 ◽  
pp. 190-212
Author(s):  
Kirthana Akunuri ◽  
Ritesh Arora ◽  
Ivan G. Guardiola
Keyword(s):  
Routing Protocol ◽  
Ad Hoc ◽  
Routing Algorithm ◽  
High Mobility ◽  
Node Mobility ◽  
On Demand ◽  
Expiration Time ◽  
Mobile Ad Hoc ◽  
Demand Routing ◽  
Hoc Networks

The flexibility of movement for the wireless ad hoc devices, referred to as node mobility, introduces challenges such as dynamic topological changes, increased frequency of route disconnections and high packet loss rate in Mobile Ad hoc Wireless Network (MANET) routing. This research proposes a novel on-demand routing protocol, Speed-Aware Routing Protocol (SARP) to mitigate the effects of high node mobility by reducing the frequency of route disconnections in a MANET. SARP identifies a highly mobile node which forms an unstable link by predicting the link expiration time (LET) for a transmitter and receiver pair. NS2 was used to implement the SARP with ad hoc on-demand vector (AODV) as the underlying routing algorithm. Extensive simulations were then conducted using Random Waypoint Mobility model to analyze the performance of SARP. The results from these simulations demonstrated that SARP reduced the overall control traffic of the underlying protocol AODV significantly in situations of high mobility and dense networks; in addition, it showed only a marginal difference as compared to AODV, in all aspects of quality-of-service (QOS) in situations of low mobility and sparse networks.

scholarly journals Failure history-based routing protocol for mobile ad hoc networks

2020 ◽  
Vol 9 (1) ◽  
pp. 194
Author(s):  
Khalid Batiha ◽  
Aamal Khaled Ababneh
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocol ◽  
Ad Hoc ◽  
Routing Algorithm ◽  
Delivery Ratio ◽  
Node Mobility ◽  
Mobile Nodes ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile Ad-hoc NETworks (MANETs) are defined as a collection of mobile nodes that cooperate in order to operate. Nodes in MANETs should build and maintain routes in order to communicate. A routing algorithm is used to manage these routes. MANETs have dynamic topology because of node mobility. The probability of route failure increases when intermediate nodes have higher mobility. This study will propose a routing protocol that depends on the failure history of the nodes from which the route will constructed. The proposed protocol will be implemented over the existing Ad hoc On-Demand Distance Vector (AODV) routing protocol. It is expected that the proposed protocol will improve the packet delivery ratio in the network. 

Efficient Routing Protocol For Mobile Ad Hoc Networks

2014 ◽  
Vol 1 (2) ◽  
pp. 6-12
Author(s):  
N. Jegan ◽  
◽  
R. Deenadhayalan ◽  
S. Anandamurugan ◽  
◽  
...  
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocol ◽  
Ad Hoc ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Performance Analysis of AODV Protocol in Mobile Ad Hoc Networks

2011 ◽  
Vol 403-408 ◽  
pp. 2415-2419 ◽  
Author(s):  
Yuan Ming Ding ◽  
Chang Hong Sun ◽  
Lin Song ◽  
Wan Qi Kong
Keyword(s):  
Routing Protocol ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Data Transfer ◽  
Simulation Software ◽  
Aodv Protocol ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
Aodv Routing Protocol ◽  
Better Than

Simulation environment of the mobile Ad Hoc network is built by applying NS2 simulation software. The simulation data indicates that AODV routing protocol is better than DSDV in throughput, fairness and stability. In the underwater network environment where the nodes are in Low-Speed movement, the data transfer rate of AODV routing protocol is higher than AOMDV. To a certain extent, AODV is more suitable for application in underwater environments.

Sign in / Sign up

Export Citation Format

Share Document