Implementation of CAVENET and its usage for performance evaluation of AODV, OLSR and DYMO protocols in vehicular networks

Vehicle Ad-hoc Network (VANET) is a kind of Mobile Ad-hoc Network (MANET) that establishes wireless connection between cars. In VANETs and MANETs, the topology of the network changes very often, therefore implementation of efficient routing protocols is very important problem. In MANETs, the Random Waypoint (RW) model is used as a simulation model for generating node mobility pattern. On the other hand, in VANETs, the mobility patterns of nodes is restricted along the roads, and is affected by the movement of neighbour nodes. In this paper, we present a simulation system for VANET called CAVENET (Cellular Automaton based VEhicular NETwork). In CAVENET, the mobility patterns of nodes are generated by an 1-dimensional cellular automata. We improved CAVENET and implemented some routing protocols. We investigated the performance of the implemented routing protocols by CAVENET. The simulation results have shown that DYMO protocol has better performance than AODV and OLSR protocols.Peer ReviewedPostprint (published version

On the Benefits of a Cooperative Layer-2 based Routing Approach for Hybrid Wireless Mesh Networks

In a wireless mesh network, the convenience of a routing strategy strongly depends on the mobility of the intermediate nodes that compose the paths. Taking into account this behavior, this paper presents a routing scheme that works differently accordingly to the nodes mobility. In this sense, a proactive routing scheme is restricted to the backbone in order to promote the use of stable routes. On the other hand, the reactive protocol is used to search routes to or from a mobile destination. Both approaches are simultaneously implemented in the mesh nodes so that the routing protocols share routing information that optimize the network performance. Aiming at guaranteeing the IP compatibility, the combination of the two protocols in the core routers is carried out at the Medium Access Control (MAC) layer. Opposite to the operation at IP layer where two routing protocols are not able to concurrently work, the transfer of the routing tasks to the MAC layer enables the use of multiple independent forwarding tables. Simulation results show the goodness of the proposal in terms of packet losses and data delayTriviño, A.; Ariza, A.; Casilari, E.; Cano Escribá, JC. (2013). On the Benefits of a Cooperative Layer-2 based Routing Approach for Hybrid Wireless Mesh Networks. China Communications. 10(8):88-99. doi:10.1109/CC.2013.6633748S889910

Portable mud remover

Basically, the only way to remove mud is by using shovel. The process of removing mud usually need us to shovel out the mud, put it into buckets and carry it outside and by using a garden sprayer or hose to wash away mud from hard surfaces [1]. This is because there are no specific tools or products to remove the mud in our industries. In that case, our group had come up with an idea to design a “Portable Mud Remover” which is inspired from a lawnmower and vacuum as shown in Figure 10.1. The idea of using concept of lawnmower is because to make is the product is portable and easy to handling. The smallest types of lawnmower are pushed by a human user and are suitable for small space. The problem occurs for the pool vacuum is that the product is not suitable to suck the mud because it is not designed for a heavy duty work

Performance Evaluation of Reactive Routing Protocols in MANETs in Association with TCP Newreno

We inspect the performance of TCP NewReno protocol for data transfer in Mobile Ad hoc networks (MANETs). Dynamic Source Routing (DSR) protocols and AdHoc On-demand Distance Vector (AODV) are standard reactive routing protocols widely used in MANETs. In addition we also have to consider Transmission Control Protocol (TCP) as essential for MANETs since it is one of the widely used internet protocol for dependable data transmission. TCP has its variants namely TCP Reno, TCP NewReno , TCP Vegas and TCP SACK. In this paper we are evaluating the performance of DSR and AODV in association with TCP Newreno with respect to various parameters such as Average throughput, instant throughput, residual energy, packet delivery ratio. The ns-2 network simulator was used for simulation

Implementation and analysis of location-based routing protocols for manets

This thesis concerns routing protocols for MANETs with a particular focus on location-based ones. After a deep overview of the literature, one regular routing protocol, DYMO, and two location-based (LB) ones, DYMOselfwd and AODV-Line, have been selected for further study. To this end, they have been implemented and simulated with the OMNET++ simulator. The scenarios are chosen to evaluate the impact of the node density, the nodes' mobility behaviour and of the ping payload on the performance of the routing protocols, in terms of scalability and ability to recover from route disruptions in a mobile scenario. In addition, the impact of an error in the location information is also analysed in the case of the two LB protocols

MEASURING THE EFFECT OF CBR AND TCP TRAFFIC MODELS OVER DYMO ROUTING PROTOCOL

A Mobile Ad hoc Network MANET are classified as single or multihop wireless network in which nodes can freely move and dynamically self-organize also the network is highly dynamic in terms of topological changes Mobile nodes can communicate with themselves without any need of predefined infrastructure But due to the dynamic nature of MANETs in terms of mobility and no infrastructure they are provided with limited bandwidth and limited battery power Due to these characteristics the MANETs are best suited for military operations in battlefield grounds Disaster relief and rescue operations Choosing the mobility model is very much crucial for specific application area that represents the moving behaviour of a mobile node that should be realistic Changing the mobility scenario allows changes in routing performance of a routing protocol in terms of routing metrics such as Delays Throughput and Routing Overhead etc within the current application area Main aim of this research paper focus to study the effects of Transmission Control Protocol TCP and Constant Bit Rate CBR from different angles over Dynamic MANET on demand routing protocol known as DYMO in order to find out the performance degradation on the basis of Data packets and Control packets Using the Network Simulator 2 experimental results show that functions of the routing protocol vary across different parameters like sending and receiving ratio of data packets and numbers of Control packets send during the simulation perio

A Survey on Various Routing Protocols in Manet with Various Protection Schemes

A MANET is a dynamic collection of the wireless mobile devices that can communicate and move at the same time. The demand of MANET is increasing due to its application in the various fields such as the military and commercial operations, sensor networking, flood affected areas etc. This is so, as the MANET nodes can communicate through wireless links and transfer the data packets from one point to another. But, the main challenge in MANET is to design the robust security solution that may protect the MANET from various routing attacks. Without any centralized administration, these mobile nodes are placed at different ranges in a particular defined area. Flooding attack is kind of the security threat in which source node sends huge amount of data, Root Request (RREQ) and Sync packet to destination node, due to which the receiver shall not work properly as it would be engaged in receiving the excessive amount of data, RREQ and Sync packets from the attacker. To attain the optimal improved results, various routing protocols are implemented and used. In this paper we shall discuss various attacks such as Black Hole, Gray Hole attack & various prevention schemes like OSPF, RIP, IGRP, and EIGRP to protect it from the attack

Performance Study of Proactive, Reactive and Hybrid Routing Protocols for MANET in Multiple CBR Scenario

Mobile Ad-Hoc Network (MANET) comprises of numerous ubiquitous mobile computing devices called nodes which form distributed network and support dynamic topology without any centralized infrastructure like base station. In such distributed network, the communication between the nodes relies on multihop technique. Since, the nodes in a MANET do not have a priori knowledge of the network topology, it discovers the route through broadcasting and listening to announcement from the neighbours. As the process continues, each node finds one or more routes to all other nodes. Hence, the end-to-end communication in a MANET does not rely on any underlying static network infrastructure but implicates routing via several intermediate nodes. The routing of data in the network depends on the protocol which determines the most appropriate path to forward packets to the intended destination. The routing protocols are classified into proactive, reactive and hybrid. - See more at: http://ijcst.com/vol-6-1/#sthash.WqU9W1rP.4EQeRlbm.dpu

Improvement and performance evaluation of CAVENET: a network simulation tool for vehicular networks

Vehicle Ad-hoc Network (VANET) is a kind of Mobile Ad-hoc Network (MANET) that establishes wireless connection between cars. In VANETs and MANETs, the topology of the network changes very often, therefore implementation of efficient routing protocols is very important problem. In MANETs, the Random Waypoint (RW) model is used as a simulation model for generating node mobility pattern. On the other hand, in VANETs, the mobility patterns of nodes is restricted along the roads, and is affected by the movement of neighbour nodes. In this paper, we present a simulation system for VANET called CAVENET (Cellular Automaton based Vehicular NETwork). In CAVENET, the mobility patterns of nodes are generated by an 1-dimensional cellular automata. We improved CAVENET and implemented some routing protocols. We investigated the performance of the implemented routing protocols by CAVENET. The simulation results have shown that DYMO protocol has better performance than AODV and OLSR protocols.Peer ReviewedPostprint (published version