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The paper presents a method of monitoring the basic parameters of cognitive mobile ad hoc network (MANET) with opportunistic access to the spectrum. The collected parameters are based on metrics from different communications layers, combined into single utility function, being a global indicator of the network health. The proposed method was tested and validated using a real time cognitive radio network...
In wireless ad hoc networks, due to the interference between concurrent transmissions, the per node capacity generally decreases with the increasing number of nodes in the network. Caching can help improve the network capacity, as it shortens the content transmission distance and reduces the communication interference. However, current researches on the capacity of wireless ad hoc networks with caching...
Throughput of a mobile ad hoc network (MANET) operating on an unlicensed spectrum can increase if nodes can also transmit on a (shared) licensed spectrum. However, the transmissions on the licensed spectrum has to be limited to avoid degradation of quality of service (QoS) to primary users (PUs). We address the problem of how the nodes of a MANET or secondary users (SUs) should spread their transmissions...
Wireless networks are expanding day by day, as everyone wants wireless connections. If we talk about Mobile Ad-hoc Network (MANETs), this is one of the vulnerable wireless networks due to lack of central co-coordinator. Any malicious nodes can threat the security of MANETs very efficiently. Black-Hole attack is one of the security threat in which the malicious node attract packets from source node...
A Mobile Adhoc Network (MANET) is featured by multi hop wireless connectivity with topology change due to highly mobile stations with autonomous configuration ability. Therefore, it is very challenging to develop vibrant and resourceful routing Protocol for MANET which also performs excellent routig with security feasibility. This paper presents a detailed study and analysis of various routing issues...
The performance of ad hoc networks depends greatly on the network topology. Thus, deploying relays or controlling the position of network nodes may impact the performance. Unmanned Aerial Vehicles (UAVs) and other elevated platforms may improve the ground network performance when used as network relays, due to better Line-of-Sight (LoS) conditions. In addition, UAVs can easily move to better locations...
In the existing system, the node may sometimes behave selfishly. To act selfishly means that nod sometimes is unwilling to forward the packets to the further node as prescribed in route from source to destination in order to save their resources and this may seriously affect the performance of the network. In the proposed system, the network is distributed into clusters and every cluster has their...
MANET is a self-sorting out, decentralized, framework less, multi hop, remote system of cell phones. routing protocols assume a crucial part in transmission of information over the network. Streaming video is content sent in packed frame over the Internet and showed by the viewer continuously. Mobile Ad hoc Networks are considered for some applications. Routing protocols are the most imperative component...
Transportable nodes in a healthy and demanding network set-up of Mobile Adhoc Network (MANET) are self-governing with self-configurable potential due to high occurrence of topology alteration and changeable rescheduling of the network mechanism during data communication. Due to simplicity of set up, the energetic networking system in MANET is very victorious in conditions where it is complicated to...
Cluster computing in ad hoc network draws special attention from the research community due to its inherent support for group communication in varied application domains like emergency and rescue operations, etc. Context sensitive aware cluster computing yields maximum benefits and advantages than the traditional computing. The Cluster Head (CH) and the Cluster Members (CM) effectively coordinate...
The impact of various mobility models like flag mobility and random waypoint mobility models on QoS issues in MANET and WSN are studied. The performance of the MANET and WSN are evaluated for the mobility models using QualNet 6.1 simulator. Performance is concerned with the Average End to End delay, Jitter, Throughput and also total messages received. which are studied for the various mobility models,...
Due to their intrinsic characteristics, Ad Hoc mobile networks could be subjects to disturbances or node break-downs. The latter are worsened by the nodes relay and mobility features. A more sophisticated Multihoming integration to MANET networks necessarily increases its robustness: in other words, it improves its performances. That is why we suggest in this article a new extension of the Stream...
This article presents a user behavior aware channel allocation scheme for mobile ad hoc networks. The proposed scheme uses a distributed approach to dynamically allocate the IEEE 802.11b/g spectrum. Our main contribution is to consider the user behavior, represented by the mobility, traffic, and node degree to guide the channel allocation process. In addition, we use a mobility model based on the...
In this paper, we propose an improved MANET gateway selection scheme suitable for disaster recovery applications. Having an infrastructure less and decentralize features, MANET is well suited to bring the network back that has been collapse after a disaster. In this paper, we focus on improving throughput performance of MANET by designing a better gateway selection scheme. The key idea is to eliminate...
The vehicular ad-hoc network is a kind of mobile ad-hoc network which contains mobile nodes on board unit and roadside units by using this three thing this network start communication. Vehicles are communicated to each other, a speed of vehicles are high so that topology of this network changed frequently. One of the main issues of this network is by maintaining the topology of vehicles so that communication...
A Mobile Ad Hoc Network (MANET) is a group of wireless mobile nodes which dynamically form a network without any established infrastructure. The application is considered in an agro-based project and therefore, Routing protocols are mandatory to send and receive packets. In this paper, we have evaluated the most commonly used routing protocols in MANET and compared the performance of reactive routing...
MANET is one kind of non-infrastructure network which is composed of various mobile nodes. Due to the battery energy constraints in MANET, energy efficiency is an important factor while designing ad hoc wireless networks. Previous works tried to optimize the AODV protocol by proposing different schemes. In this paper, two solutions have been proposed to control the congestion problem of wireless ad-hoc...
Every author seeks to optimize the QOS in MANET network through routing. Essentially, Qos optimization is used to enhance the life time so that less energy can be consumed, additional packets should be distributed with less Bit Error Ratio and less routing overhead. In this research, the performance analysis of DSR routing protocol is evaluated. Firstly the optimization technique i.e. Bacterial Foraging...
Mobile ad hoc networks (MANET) do not have base stations or access points, and due to this nature, the ad hoc networks are susceptible to jamming attack which is the most common attacks. Since many ad hoc networks employed IP-based routing, they should be protected and communication between nodes should be secured. The aim of this study is to investigate the performance of MANET with the application...
In recent days, the Mobile Adhoc Network (MANET) plays a vital role in networking research environment for sharing information from one to others. MANET is a mobile, which is formed by radio waves without any desirable base stations. The main issue of Destination Sequenced Distance Vector Routing Protocol (DSDV) is routing overhead continuously, because it maintains the up-to-date information during...
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