scholarly journals Towards Developing Enhanced Cluster-Based QoS-Aware Routing in MANET

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Kebebew Ababu Yitayih ◽  
Mulugeta Libsie
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Delivery Ratio ◽  
Link State ◽  
End To End Delay ◽  
Clustering Approach ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Creating dynamic communication infrastructures between mobile devices and satisfying the desires for time-sensitive multimedia applications have introduced new challenges in the design of protocols for mobile ad hoc networks. In this paper, to stream time-sensitive applications using mobile ad hoc network (MANET), we have selected the Optimal Link State Routing (OLSR) protocol. However, the protocol has high overhead because each node selects a set of multipoint relay (MPR) nodes. Therefore, we have proposed quality of service (QoS) supporting the MPR selection approach and a new lower maintenance clustering approach for minimizing the overhead of the network. As a result, the proposed approach showed a better result in the average end-to-end delay, packet delivery ratio, routing load, and throughput.

scholarly journals Efficient Heuristic Based on Clustering Approach for OLSR

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Ali Choukri ◽  
Ahmed Habbani ◽  
Mohamed El Koutbi
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Delivery Ratio ◽  
Dynamic Nature ◽  
End To End Delay ◽  
Delay Control ◽  
Clustering Approach ◽  
Mobile Ad Hoc

Due to the dynamic nature of mobile ad hoc network (MANET), the quality of service (QoS) requires several improvements. The present papercomeswithin the framework of research to optimize QoS in MANET. In this paper, we propose a novel version of OLSR based on the clustering approach which is inspired from Lin and Chu heuristic and adapted to beimplemented inOLSR. We studied its stability and we compared its performances to those of standard OLSR. The metrics we used in evaluating network performances were average end-to-end delay, control routing overhead, and packet delivery ratio. Experimental results show that our alternative significantly reduces the traffic reserved to monitoring the network, which positively influences other performances such as throughput, delay, and loss.

scholarly journals Se-Eaodv to Detect and Prevent Black Hole Attack in Manets

2020 ◽  
Vol 9 (8) ◽  
pp. 513-517
Keyword(s):  
Black Hole ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Delivery Ratio ◽  
Black Hole Attack ◽  
End To End Delay ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
Route Request

The security of the data which is transferred from source to destination is of prime importance in the mobile ad hoc network (MANET) or any kind of network to be very precise. If the data gets lost then the entire purpose of deploying and creating the network fails. Mobile ad hoc networks suffer from various attacks out of which black hole attack is considered the most dangerous one because in this attack the venomous node release all the packets received by it. The authors in EAODV has used the concept of fake route request packets to identify the black hole nodes in the grid. The proposed technique detects the malicious black hole node using the sequence numbers. The performance of the network has been examined based on end to end delay, packet delivery ratio, detection time, throughput and remaining energy. These parameters have shown improvement over the existing scheme.

scholarly journals Improving the selection of MPRs in OLSR protocol: a survey of methods and techniques

2020 ◽  
Vol 10 (1) ◽  
pp. 288
Author(s):  
Omar Barki ◽  
Zouhair Guennoun ◽  
Adnane Addaim
Keyword(s):  
Routing Protocol ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Link State ◽  
Execution Environment ◽  
Mobile Ad Hoc ◽  
Optimized Link State Routing ◽  
Selection Of

Multi Point Relays (MPRs) are those nodes that are calculated and determined by the Optimized Link State Routing protocol (OLSR) in order to minimize and avoid overload inside the Mobile Ad hoc Network (MANET). In this paper, we will present a synthetic study of many techniques and methods for calculating and selecting the MPR nodes using a set of criteria namely energy, mobility, bandwidth, the quality of links, etc. The result of this study shows that most techniques consider a limited number of metrics for selecting the MPR nodes and therefore they are insufficient to allow the OLSR protocol to be quite complete and efficient because several metrics can occur at the same time in the real execution environment.

scholarly journals Packet Delivery Ratio and Overhead Reduction for À-GPS Mobile Ad-Hoc Networks

2020 ◽  
Vol 9 (3) ◽  
pp. 743-747
Keyword(s):  
Mobile Ad Hoc Networks ◽  
Routing Protocol ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Delivery Ratio ◽  
Significant Issue ◽  
Packet Delivery ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Now a day’s mobile ad-hoc network (MANET) is engaged by numerous scientists and endeavoring to be conveyed by and by. To accomplish this objective, these two components are a significant issue that we need to consider. The first is "overhead". As it were, messages that is not important to be sent when setting up a system association between versatile hubs. The following issue is the parcel sending rate from source to the goal hub that sufficiently high to ensure a successful system association. This paper is concentrating on improving the exhibition of the Location-Aided Routing Protocol (LAR) regarding overhead decrease by adjusting the calculation of the MANET course disclosure process. The consequence of the reproduction shows that the proposed convention can decrease overhead definitely, growing system lifetime and increment parcel sending rate while contrasting and other traditional conventions.

Differential Evolution Based Probabilistic Model to Support Quality Aware Best Path Routing Scheme for Mobile Ad-Hoc Networks

2019 ◽  
Vol 16 (2) ◽  
pp. 616-620
Author(s):  
S. Priya ◽  
P. Suganthi
Keyword(s):  
Quality Of Service ◽  
Ad Hoc Networks ◽  
Differential Evolution ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Mobile Ad Hoc ◽  
Hoc Networks

The mobile ad hoc networks have made the source and the influenced shortest path routing extremely challenging owing to their unstable and dynamic topology. Even though the nodes keep moving and this increases the packets and their retransmission and this brings down the delivery ratio. The Ad hoc networks with their quick deployment and minimal configuration are well-suited for these emergency situations such as disasters that are human-induced, medical situations or emergency, military conflicts and so on. Every mobile node found in a Mobile Ad hoc Network (MANET) can perform a routing function to establish some communication among various nodes, their "death" and also of some nodes owing to the exhaustion of energy that can disrupt service of the whole network. The ad hoc on-demand distance vector routing (AODV) is that routing protocol which gets established at a time there is a demand for another new route. It is found to be similar to the energy and the other parameters of Quality of Service that includes throughput, security, jitter and end-to-end delay. For this work, there is a probabilistic routing scheme which is quality aware for enhancing and improving the mobile ad hoc network and its throughput and this is known as a Differential Evolution (DE). As opposed to looking out for a path that is the shortest, this heuristic has proposed the best path to ensure that there is an overall quality of service that is ensured. This algorithm which is based on the DE has improved the chances of selecting the ideal route for data transmission.

Securing Energy Routing Protocol against Black Hole Attacks in Mobile Ad-Hoc Network

2020 ◽  
Vol 13 ◽  
Author(s):  
Rajendra Prasad P ◽  
Shiva Shankar
Keyword(s):  
Routing Protocol ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Delivery Ratio ◽  
Route Discovery ◽  
Packet Delivery ◽  
End To End Delay ◽  
Mobile Ad Hoc ◽  
End To End

Introduction: The aim of the securing energy routing protocol, is to provide the countermeasures to the attacks par-ticularly to the black hole in mobile ad-hoc network, and enhancing the network performance metric throughput al-so reducing the end-to-end delay between the nodes in the network.To build the protocol that enhances the perfor-mance of the network by modifying the existing DSR protocol by introducing new route discovery mechanism in the proposed protocol. Method: The proposed protocol implementation has two phases, route request/reply phase and route confirm phas-es. During the route discovery process, the route discovery from the source to destination process are described by sending the RREQ packet from the source hub as shown in Fig. 1(a), when it does not have one accessible and crav-ings a route to a destination. The source node transmits the RREQ to its associate nodes and the destination node re-ply with RREP. When the source receives reply message, the source node respond with reverse path with a confirm RCON message and providing security to the nodes in the network. Results: To verify the performance of the proposed protocol against the existing DSR protocol are compared with respect to various network metrics like end-to-end delay and packet delivery ratio and validated the result by com-paring both routing algorithm using Network Simulator 2. Conclusion: The results of the proposed SERP strongly safeguard against the attacks in the network and the packet delivery ratio is increased compared with the DSR also the end-to-end delay is reduced in the proposed protocol. Discussion: Mobile ad-hoc networks are being dynamic in nature, it associates with issues relating to secure routing, energy and are generally vulnerable to several types of attacks. The DSR is one of the widely used reactive proto-cols available for the mobile ad-hoc network and the proposed work enhancing the security of the network in the existing pro

scholarly journals Performance Analysis of AODV and OLSR protocol in Mobile Ad Hoc Network using NS3

2020 ◽  
pp. 372-379
Author(s):  
Soumya S. ◽  
Krishna Prasad K. ◽  
Navin N. Bappalige
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Base Station ◽  
Delivery Ratio ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile Ad Hoc networks is a network in which energy is a main constraint and selection of a protocol that minimizes the energy usage is a key issue. Mobile Ad hoc network communicates with other nodes, without the help of base station and Communication is possible by forwarding a data unit consisting of control information and user data known as packets from one node to other. Furthermore, another key issue in mobile ad hoc networks is routing since the nodes are in mobility and tend to change the paths and move out of the network. The evaluation of energy efficient routing protocols can be effectively performed using NS3. Three types of routing protocols can be seen, Reactive, Proactive and Hybrid and in this paper, AODV a reactive protocol and OLSR a proactive protocol is compared and Delivery ratio of packets, Packet Loss and count of packets received are evaluated to analyze the energy efficiency of protocols based on these metrics.

scholarly journals Comparative Performance Evaluation of Mobile Ad-hoc Network Routing Protocols using NS2 Simulator

2020 ◽  
Vol 9 (3) ◽  
pp. 707-713
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Delivery Ratio ◽  
Distance Vector ◽  
Mobile Ad Hoc ◽  
Hoc Networks

A Mobile Ad-hoc Network (MANET) is an independent assortment of mobile users that communicate over moderately bandwidth constrained wireless links. MANET’s topology is dynamic that can change rapidly because the nodes move freely and can organize themselves randomly; has the advantage of being quickly deployable. Although numerous routing protocols have been proposed for mobile ad hoc networks, there is no universal scheme that works well in scenarios with different network sizes, traffic loads and node mobility patterns, so mobile ad hoc routing protocol election presents a great challenge. In this paper, an attempt has been made to compare the performance of three routing protocols in Mobile Ad-hoc Networks – Ad-Hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR) and Destination Sequenced Distance Vector (DSDV). We have evaluated the performance of these routing protocols with varying the number of mobile nodes and packet sizes on the basis of four important metrics such as packet delivery ratio, average end to end delay, normalized routing overhead and throughput. Network Simulator version 2.35 (NS-2.35) is used as the simulation tool for evaluating these performance metrics. The outcome of this research shows that AODV protocol outperforms DSDV and DSR protocols.

scholarly journals Competitive analysis of single and multi-path routing protocols in mobile Ad-Hoc network

2020 ◽  
Vol 19 (1) ◽  
pp. 293
Author(s):  
Mohammed Ahmed Jubair ◽  
Mustafa Hamid Hassan ◽  
Salama A. Mostafa ◽  
Hairulnizam Mahdin ◽  
Aida Mustapha ◽  
...  
Keyword(s):  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Delivery Ratio ◽  
Network Simulator ◽  
Mobile Nodes ◽  
Dynamic Source ◽  
Mobile Ad Hoc ◽  
Hoc Networks

<p>A Mobile Ad-hoc Network (MANET) refers to a dynamic and wireless network, which can be designed without an existing infrastructure as every node serves as a router. A MANET is a self-configuring system of mobile nodes that are connected wirelessly. Every node serves as a sink, as well as a router to send packets. The movement of the nodes is not restricted as they can move in any direction, and they have the ability to get organized into a network. Due to their free and independent movement, they do not have a fixed position; they often change positions. In this study, the Dynamic Source Routing (DSR) and Ad-hoc On Multipath Demand Distance Vector (AOMDV) protocols are compared using Network Simulator NS2.35. DSR is a reactive gateway discovery algorithm whereby the connection of a MANET mobile device is established only on demand. Basically, AOMDV was specially tailored for ad-hoc networks that are highly dynamic to respond to link failures and breakages in the network. It ensures that the paths for destinations are sustained, and it defines the new routing information using destination serial numbers to ensure loop freedom always while avoiding problems. More so, it is a protocol that is based on a timer that can discover ways through which the mobile nodes respond to link breakages and change in topology. A comparison of protocols has been carried out individually and jointly with the aim of evaluating their performance. The performance is measured in terms of End-to-End Delay, Packet Delivery Ratio, Packet Loss Ratio, and Routing Overhead Ratio. The performance of the routing protocols was done using two scenarios; when there is a change in the simulation time and when there is a change in the number of nodes.</p>

A Route Selection Mechanism for Mobility of Node in Mobile Ad Hoc Network

2012 ◽  
Vol 224 ◽  
pp. 520-523
Author(s):  
Hyun Jong Cha ◽  
Jin Mook Kim ◽  
Hwang Bin Ryou
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Base Stations ◽  
Movement Direction ◽  
Wired Networks ◽  
Mobile Ad Hoc ◽  
Hoc Networks

A mobile ad-hoc network is a method of communication between different nodes (mobile devices) without the use of base stations, which are used in wired networks. In a Mobile ad-hoc network, nodes can play the role of a receiver, sender, or a relay. As movement is flexible in Mobile ad-hoc networks and nodes have limited resources, nodes may join the communication or exit it at any time. Therefore, for Mobile ad-hoc networks, routing techniques - selecting communication routes and maintaining them – is considered important in an environment of constantly changing network topology. To overcome this problem, this paper proposes a reliable routing protocol based on MP-AOMDV, which monitors changes in signal strength not only for GPS signals but reception signals as well. Although MP-AOMDV was researched under the assumption of fixed movement direction and speed, this paper proposes a routing technique that works with changing movement direction or speed of nodes.

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