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

A Comparative Study of AODV, DSR, and DYMO routing protocols using OMNeT++

The work presented here i s a summary of the results obtained when routing protocols viz. AODV, DSR, DYMO were simulated using virtual hosts on a discrete - event simulation: OMNeT++ v4.2.1. The three protocols are run on a simulation setup of 20 nodes without any mobility models. Thi s allows us to focus our attention on solely the MAC properties and related results derived from the three protocols. We describe and compare the three routing protocols on available parameters like contention window, SNIR, routing overhead, radio state an d more. We conclude by stating the DYMO emerges as the better protocol of the three examined here

Analysis of OLSR, DSR, DYMO routing protocols in mobile Ad-Hoc Networks using OMNeT++ Simulation

In present scenario, choosing the routing protocol is vital task in mobile ad-hoc networks. These type of networks is collection of nodes which are connected dynamically and situated without using any infrastructure. There are various types of routing protocols have been implemented such as OLSR, DSR, DYMO, AODV, DSDV, BATMAN etc. These are implemented in specific simulation environments. In this research, an analysis has been done to choose the appropriate routing protocol. A comparison based on relative results is prepared for DYMO, OLSR and DSR protocol. A sample network is simulated to try these three routing protocols over a set of parameters. DYMO and DSR protocols found more difficult and OLSR protocol has better performance in comparison of both DYMO and DSR. This simulation has been carried out using OMNeT++ simulation framewor

Routing protocol evaluation and development of a fully functional simulation environment for vehicular ad hoc networks

A Vehicular Ad-hoc Networks (VANET) is an area of wireless technologies that are attracting a great deal of interest. There are still several areas of VANETS, such as medium access control, security and routing protocols, that lack large amounts of research. There is also a lack of freely available simulators that can quickly and accurately simulate VANETs. One of the two main goals of this thesis was to develop a freely available VANET simulator and to evaluate popular mobile ad-hoc network routing protocols in several VANET scenarios. The VANET simulator consisted of a network simulator, a traffic (mobility simulator) and used a client-server application to keep the two simulators in sync. The VANET simulator also models buildings in order to create a more realistic wireless network environment. The second main goal of this thesis was to provide an evaluation of the routing protocols that are commonly used in mobile ad-hoc networks, which will apply to VANETs. Ad-Hoc Distance Vector routing (AODV), Dynamic Source Routing (DSR) and Dynamic MANET On-demand (DYMO) were initially simulated in a city, country, and highway environment in order to provide an overall evaluation

DYMO self forwarding: a simple way for reducing the routing overhead in MANETs

Current routing protocols in Mobile Ad hoc Networks tend to use information on the position of the nodes in order to improve their features. In fact, without this information, protocols are hardly scalable since they tend to overflow the radio media with control packets, most of them being useless at the end. This paper presents the assessment of a modification of the DYMO protocol in order to include and use positioning information. The evaluation is carried out through simulations in realistic environments and connectivity condition. The possible error in the position is seldom considered in this kind of studies but here taken into account to catch the impact of realistic GPS devices or other sources of location techniques.Peer ReviewedPostprint (published version

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

The Quest for Scalability and Accuracy in the Simulation of the Internet of Things: an Approach based on Multi-Level Simulation

This paper presents a methodology for simulating the Internet of Things (IoT) using multi-level simulation models. With respect to conventional simulators, this approach allows us to tune the level of detail of different parts of the model without compromising the scalability of the simulation. As a use case, we have developed a two-level simulator to study the deployment of smart services over rural territories. The higher level is base on a coarse grained, agent-based adaptive parallel and distributed simulator. When needed, this simulator spawns OMNeT++ model instances to evaluate in more detail the issues concerned with wireless communications in restricted areas of the simulated world. The performance evaluation confirms the viability of multi-level simulations for IoT environments.Comment: Proceedings of the IEEE/ACM International Symposium on Distributed Simulation and Real Time Applications (DS-RT 2017

A one hop overlay system for Mobile Ad Hoc Networks

Peer-to-Peer (P2P) overlays were initially proposed for use with wired networks. However, the very rapid proliferation of wireless communication technology has prompted a need for adoption of P2P systems in mobile networks too. There are many common characteristics between P2P overlay networks and Mobile Ad-hoc Networks (MANET). Self-organization, decentralization, a dynamic nature and changing topology are the most commonly shared features. Furthermore, when used together, the two approaches complement each other. P2P overlays provide data storage/retrieval functionality and MANET provides wireless connectivity between clients without depending on any pre-existing infrastructure. P2P overlay networks can be deployed over MANET to address content discovery issues. However, previous research has shown that deploying P2P systems straight over MANET does not exhibit satisfactory performance. Bandwidth limitation, limited resources and node mobility are some of the key constraints. This thesis proposes a novel approach, OneHopOverlay4MANET, to exploit the synergies between MANET and P2P overlays through cross-layering. It combines Distributed Hash Table (DHT) based structured P2P overlays with MANET underlay routing protocols to achieve one logical hop between any pair of overlay nodes. OneHopOverlay4MANET constructs a cross-layer channel to permit direct exchange of routing information between the Application layer, where the overlay operates, and the MANET underlay layer. Consequently, underlay routing information can be shared and used by the overlay. Thus, OneHopOverlay4MANET reduces the typical management traffic when deploying traditional P2P systems over MANET. Moreover, as a result of building one hop overlay, OneHopOverlay4MANET can eliminate the mismatching issue between overlay and underlay and hence resolve key lookups in a short time, enhancing the performance of the overlay. v In this thesis, we present OneHopOverlay4MANET and evaluate its performance when combined with different underlay routing protocols. OneHopOverlay4MANET has been combined with two proactive underlays (OLSR and BATMAN) and with three reactive underlay routing protocols (DSR, AODV and DYMO). In addition, the performance of the proposed system over OLSR has been compared to two recent structured P2P over MANET systems (MA-SP2P and E-SP2P) that adopted OLSR as the routing protocol. The results show that better performance can be achieved using OneHopOverlay4MANET

A new routing metric for DYMO protocol on mobile AD HOC network

Mobile ad hoc networks (MANETs) are consists of mobile devices connected wirelessly. MANETs communicate without any fixed infrastructure or any centralized domain. All the nodes are free to move randomly within the network and share information dynamically. Routing protocol in MANET show how the mobile nodes messages are forwarded in a multi-hop fashion. The wireless connectivity and node mobility in MANET networks contributes in rapid topological changes, which brings the need for a channel aware routing protocol. Hence, the need for efficient routing protocols to allow the nodes to communicate. In such a communication scheme a routing protocol play an important role in the network performances. Achieving high user data rates over multi-hop wireless paths is considered the ultimate goal for MANET. To overcome this problem, several important modifications to the routing protocol algorithms are then considered to operate better in networks. This research work proposed a SNR-based routing metric for Dynamic Mobile Ad hoc Network onDemand (DYMO) routing protocol. This paper starts by investigate and compare the performance among reactive routing protocols in MANET. Secondly, the DYMO protocol choose routes based on SNR metric are modeled as proposed the new routing metric. Simulations scenarios are used for the work of the research by develop the new routing metrics in DYMO protocol module in OMNET++. The results show that SNR-DYMO improves the performance of the MANET in terms of throughput and packet delivery ratio throughout all simulation scenarios