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Rapid advancement in ad hoc networks and its variants, create a need for efficient and accurate routing decisions. As routing decisions for Mobile Ad hoc Networks has great impact on the overall performance of the network Quality of Service (QoS) parameters (delay, bandwidth, PDR etc.), optimized routing protocols need to be designed. One of the biggest challenges in designing ad hoc routing protocols...
A Mobile Adhoc Network (MANET) is self-possessed combination of mobile nodes. It has to be self-structured. The MANET has few specific goals. These are mobility extensions into wireless domain and autonomous mobile dominion. In this set of specified nodes that form adhoc network with routing infrastructure too. Multicasting is responsible for transferring information efficiently from a source to any...
The self-organizing wireless Mobile Ad-hoc Networks are characterized by the routing protocols they employ and the wireless technology used by the nodes in those networks. Process of route formation in MANETs is based only on the decision of network layer; resulting in network prone to congestion and degraded performance. Constraints imposed by MAC sub-layer and PHY layer go unnoticed with conventional...
Mobile ad hoc networks (MANETs) are self-configuring, dynamically adaptable networks of heterogeneous devices, some of which can assume the role of routers. Meanwhile, mobile computing is an increasingly pervasive technology worldwide, thus positioning MANETs as a very suitable technology for disaster scenarios. This article addresses the problem of guaranteeing a minimum operational infrastructure...
In MANETs, real-time multimedia applications make Quality of Service (QoS) support, a crucial issue regarding terms of increased throughput, reduced jitter and available bandwidth. The highly dynamic topology of the network, large variation of received signal strength at nodes and frequently varying link characteristics make QoS provisioning, a challenging task. Most of the existing routing protocols...
Internet technology and multimedia applications practices increasing day by day, a stimulation of Quality of Service (QoS) in Mobile Ad hoc Networks (MANETs) is now a great interest area for companies to serve better for their users. This research work focuses on design and development of new Energy Aware Multicast Cluster (EAMC) based routing to enhance the QoS of the MANETs. This proposed routing...
Mobile ad hoc Networks (MANETs) is a type of wireless ad hoc network which is a self-arranging network of mobile nodes connected by wireless links that create a discretionary topology. The mobile nodes are free to move randomly and to arrange themselves in a random manner. Thus, the wireless ad hoc network topology may expand rapidly and unpredictably. In Mobile ad hoc networks, the routing protocol...
Mobile ad hoc networks (MANETs) are temporary networks which are formed for a specific purpose. They are infrastructureless, autonomous and entirely distributed systems where different wireless mobile nodes are capable of arbitrary movement and power switching without breaking the network connectivity since it is physically possible. In these networks, nodes must operate both as hosts and as routers...
Mobile ad-hoc networks are spontaneous, on the fly, self adaptive networks. Every mobile node acts as route. Data is transmitted from host to destination through an ever changing network topology. In recent day's scenario multimedia streaming one of the important challenging tasks in Mobile ad hoc network (MANET) as it affects the Quality-Of-Services (QOS) of the network as it needs more bandwidth...
Mobile networks in the military tactical domain, include a range of radio networks with very diverse characteristics and which may be employed differently from operation to operation. When interconnecting networks with dissimilar characteristics (e.g. capacity, range, mobility) a difficult trade-off is to fully utilize the diverse network characteristics while minimizing the cost. To support the ever...
Mobile Ad Hoc Networks (MANETs) are a self organizing and adaptive wireless networks. Currently MANETs possess an advanced challenge in providing Quality of Service( QoS) support for real time application data streaming through the network. These applications are delay sensitive and get affected due to congestion in the network. Thus, performance degrades due to high data loss, frequent link breakage...
Newly, with the emergence of demanding applications e.g. multimedia applciations and its rapid prevalence on a large scale area e.g. urban environment. Supporting the scalability as well as satisfying QoS of demanding applications represent one of the main properties in urban environments. However, supporting applications and services in a such complex, distributed, large and diverse environment as...
When some wireless networks are formed only for a particular purpose, they are the Mobile Ad-hoc Networks (MANETs). They do not depend on any access point for communication; they self-organize, and change topology dynamically. A routing protocol is necessary to help a node discover the routes to other nodes of the network and enable its communication with them. Each routing protocol tends to find...
Adhoc network design goal is to provide internet access anytime characterized by lack of infrastructure and absence of base station, mobility and heterogeneity which require a dynamic efficient routing protocol. We proposed a delay energy aware routing protocol called as reactive congestion aware multipath routing protocol-RCRP aim to select the route based on energy reduction rate and packet delivery...
In mobile ad hoc networks, the quality of service (QoS) guarantees are more difficult when compared with wired networks due to mobility of nodes. The difficulties in the provision of such guarantees have limited the utility of MANETs. The AOMDV (Ad hoc On Demand Multipath Distance Vector) has a better routing protocol for efficient data delivery. In this paper we improve the QoS performance of AOMDV...
Nodes in Mobile Adhoc NETwork (MANET) are suffered by limited bandwidth and frequent changes in the topology due to node mobility. The nodes participating in the network are powered by limited battery resources and the battery depletion can imply network failure. Although establishing correct and efficient routes is an important design issue in MANET, providing energy efficient routes is a more challenging...
In Mobile Ad Hoc Networks (MANET), delays and bandwidth limitations of the wireless network system adversely affect the performance of the Voice over IP (VoIP). The calls setup time and the voice Quality of service (QoS) of VoIP calls depend on the routing protocol, the mobility model, and the number of hops between the call parties. Number of research efforts used to study the performance metrics...
In this paper, an evaluation of SIP signaling and voice QoS for SIP based VoIP using GSM voice codec system over IPv6 MANETs with Static, and Random mobility models. This evaluation study considered two types of reactive routing protocols, AODV and DSR. The study examined IPv4, IPv6, and Robust Header Compression (ROHC) as a compression/decompression system for IPv6 headers. The evaluation results...
This paper presents a source based power-aware reactive routing protocol for Mobile Ad hoc Networks (MANETs). It considers Quality of Service (QoS) parameters namely delay, throughput, bandwidth and cost of each link. Recent advances in MANETs have led to many new routing protocols specifically designed for mobile devices. Almost all of these routing protocols considered energy efficiency as the ultimate...
Most of the Future Internet users will be wirelessly connected to IP clouds through different types of wireless networks. Thus, the number of applications and devices will be increased, and IPv6 insists to be applied. Voice over IP (VoIP) is one of the most popular Internet applications which provide real time voice communications between different parties and network systems. The Quality of Service...
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