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In Ad-hoc networks, routing is complex as nodes are mobile due to which paths are destroyed and generated again and again. The difficulty in MANET is to find a feasible path between communicating nodes as routing is non-deterministic polynomial hard which is due to mobile nature of nodes. Many past works focused on finding a feasible path from a source to destination by considering only a single parameter...
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...
In this article we propose a proactive scheme that predicts the average queue size, using Forward Linear prediction scheme Recursive Least Square(RLS) and performs Flow Control by the adjustment of TCP window dynamically as per the predicted Queue Size. It is an approach to Congestion Control to improve the network level and user level performance of Voice data over dynamically varying Mobile Ad-hoc...
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...
A MANET is a self-configuring ad hoc network that could be very useful for battlefield communication. Because of its versatility, Tactical Mobile Ad-hoc NETwork (MANET) is also widely used by modern military units especially for the autonomous maneuvering of unmanned vehicles and robots. But Quality of Service in Tactical-MANET is difficult because the network topology changes dynamically. The resource...
Quality of Service (QoS) is a vital feature of Mobile Ad hoc Networks (MANETs). Efficient energy utilization has been a primary concern in choosing routes from primary and secondary caches. Because of frequent movement of nodes energy consumption in MANET becomes a need. Generally failures of a route happen during the data transmission. Break age of routes leads to greater delay and increased delay...
In this work, we propose an adaptive congestion control and avoidance mechanism as an enhancement to our earlier proposed QoS-aware routing protocol. We utilize Ant Colony Optimization (ACO) algorithms for adaptive multipath routing and use the monitoring feature of the Simple Network Management Protocol (SNMP) for QoS computation. So, merging these two methodologies we propose a powerful adaptive...
Recently extensive works have been devoted to the performance analysis of physical layer security in wireless communication systems. However, the combination of physical layer security and quality of service (QoS) for route selection in multi-hop wireless ad hoc networks (WANETs) still remains an open technical challenge. As an initial step towards this end, this paper focuses on a multi-hop WANET...
The widespread use of mobile and handheld devices is likely to popularize ad hoc networks, which do not require any wired infrastructure for intercommunication. The nodes of mobile ad hoc networks (MANETs) operate as end hosts as well as routers. They intercommunicate through single-hop and multi-hop paths in a peer-to-peer fashion. Most applications of MANETs require efficient support for multicast...
MANET (Mobile Ad-hoc NETwork) is a wireless Ad-hoc network which has it's nodes working as transmitters and receivers. However, every node in a MANET will also be entrusted with the responsibility of being intermediaries to transmit and receive data for other nodes and thus act as routers. Nodes in a MANET can misbehave to save valuable resources, which can have a great impact on network performance...
In MANET routing one of the very important factor to be considered is the QoS. A multi-constraint routing protocol discussed till now considers two or three fixed QoS metrics. As all the metrics are not examined, there is high possibility that few other QoS are not achieved. In this paper rough set theory is introduced to dynamically select any of the QoS metrics depending on their values in information...
Wireless Ad hoc Network is the collection of wireless mobile nodes (devices) that are able to dynamically form a temporary network without the use of any existing network infrastructure or centralized administration. This paper discusses the roles of ad hoc networking in future wireless communications. In this paper we surveyed the different types of ad hoc networks such as isolated ad hoc networks...
An Integrated Internet MANET is a heterogeneous networking architecture which is formed by interconnecting wired Internet with wireless MANET. Such architecture is needed in order to realize the potential of, and to achieve the stated objectives of proposed 5G networks of the future. Several issues arise in Integrated Internet MANET, chief among them being Quality of Service (QoS). Packet type based...
Quality of Service (QoS) ensures the quality of the network. The proficiency of multiple path formula surmounts the problems of single path routing protocol while transferring the data. But the speedy outgrowth of real time application considers the QoS requirement such as packet delivery ratio, end to end delay, throughput and residual energy. The proposed routing technique ensure that it contributes...
Mobile Ad hoc network (MANET) is a special type of network that supports connectivity without any infrastructure and it faces many challenges such as high mobility rate of the nodes, resource constraint and the nodes work without any central administration. In Mobile Adhoc Network (MANET), the mobile devices have restricted resources such as limited battery power, so it is difficult for traditional...
Quality of Service for Mobile Adhoc Network is one of the pioneering research areas and variety of routing protocols is introduced. However, those routing protocols is not support multiple routes by assigning priority according to their desired data rates. In this paper, Priority Aware Adhoc On Demand Multipath Distance Vector protocol is proposed in order to enhance the Quality of Service for Mobile...
Mobile Ad Hoc Networks (MANETs) have a dynamic topology and are also multihop in nature. This makes provision of Quality of Service (QoS) parameters in these networks extremely difficult. One of the main reasons for the low QoS in MANETs is the loss of packets due to sudden breakage of links. Hence it becomes imperative to provide a routing protocol that keeps on providing backup routes in a judicious...
Mobile Adhoc Networks (MANETs) as the name signifies is a network formed by collection of mobile adhoc devices (nodes). It is a kind of infrastructure less wireless network which is autonomous decentralized where each node is free to move anywhere at any time. Due to the mobility of nodes routing is main issue of research, since the wired network's routing protocols cannot be used here. Routing in...
Ad hoc is a Latin word which describes solutions for this or specific purpose. In the world of computer network, an ad hoc network refers to a network connection which established for a single session and does not require wireless base station; they are on-the-fly networks. Energy, security and selfishness have been amongst the most popular issues for researchers in recent years. Selfish node is stated...
This paper studies the resource allocation problem for efficiently utilizing network resources for distributing video over a peer to peer mobile ad hoc network. We define an NP complete linear optimization problem to handle the upload bandwidth available across each node. Scalable video coding is used to maximize the quality of experience among users and to distribute the load and reduce the consumed...
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