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Currently, 4G mobile communication systems are supported by the 3GPP standard. In view of the significant increase in mobile data traffic, it is necessary to characterize it to improve the performance of current wireless networks. Indeed, video transmission and video streaming are fundamental assets for the upcoming smart cities and urban environments. Due to the high costs of deploying a real LTE...
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...
Nowadays the widespread use of variety of smart phones and tablets with wide range of multimedia application support is driving more data service users towards full mobility causing a rapid increase in demand for mobile data rates. These new devices and multimedia applications require high data rates and reduced latency to provide better Quality of Service (QoS). To address these requirements the...
Mobile data offloading using Wi-Fi hotspots is increasingly utilized as it satisfies the huge traffic demand and boosts network capacity. For that reason, several studies have been carried out to define the best approaches to offload IP flows from LTE to Wi-Fi. In this paper, we investigate the offload optimization problem from an LTE-A network to Wireless Mesh network (WMN) owned by the operator...
Quality of Service (QoS) is defined as the capability of network elements (e.g. application, host and router) to provide some sort of assurance and service differentiation for consistent network data delivery. Recently, Internet Engineering Task Force (IETF) has introduced Network Mobility Basic Support (NEMO BS) protocol (RFC 3963) to address the challenges of the entire network mobility (such as...
Mobile operators are today facing the daunting challenge of providing cheap and valuable services to ever more demanding customers. As a matter of fact, mobile standards have not yet really addressed this expectation of open, cheap and flexible web oriented internet access. As an alternative, we introduced an IP-centric QoS model mainly inspired by IP policies commonly found in fixed networks. In...
In recent years, the monitoring of End-to-End protocols from inside the mobile data network has become a powerful tool to gain insight into subscriber specific information on usage behavior and quality of experience. With the advent of big data in mobile networks, the power of statistical data analysis can now be utilized in order to answer so far untreatable questions both in the area of network...
Wireless communication encapsulates the earth into a global village with its reach to every nook and corner of the globe. The fourth generation (4G systems) of wireless communication was expected to be up for grabs from 2010s. However, due to the complicated hardware required the evolution of technology into 4G has been sluggish. Since 4G services require the integration of all the existing communication...
The Long Term Evolution (LTE) may provide ubiquitous mobile broadband services with all IP architecture, however, the quality of service (QoS) of LTE systems is seriously affected by the network congestions, packet losses, jitters, latencies and other QoS issues in all IP networks. Thus it is valuable to investigate and design efficient resource scheduling algorithms to improve the performance of...
Computer networks are dramatically extending all over the world. They have diverse topologies and benefit from various technologies. They can also support users with different types of services. Nevertheless, all of them have an ultimate purpose in common. They should satisfy their users with high-quality services. To achieve this goal, Quality of service (QoS) solutions are required. However, they...
Nowadays, a new paradigm is emerging: the challenging integration of Peer-to-Peer into mobile Ad hoc networks (MANETs). In this context, this paper proposes a new distributed lookup protocol for mobile P2P networks. Its main objective is to reduce the overhead traffic and the lookup delay. Simulation results indicate that the proposed scheme has an improved performance in comparison with the popularly...
The popularity of mobile Internet is driving the Mobile world towards untrusted services while increasing Mobile Data volumes encourage adoption of untrusted access network for delivery of MNO services. This paper examines the emerging methods of utilizing untrusted access and facilitating untrusted third party services on either trusted or non-trusted access networks via existing and extended EPS...
The handover performance in mobile network is the most important factor that can influence the Quality of Service (QoS). Today many countries in the world have migrated to more advanced mobile communication system such as the IEEE 802.16e mobile WiMax network. This mobile WiMax has been proven to be more stable and applicable for fixed, portable, nomadic and mobile network. The parameters such as...
The IEEE 802.16 standard defines wireless broadband access technology called Worldwide Interoperability for Microwave Access (commonly called fixed WiMAX). WiMAX introduces several interesting advantages including variable and high data rate, last mile wireless access, point to multipoint communication, large frequency range, and Quality of Service (QoS) for various types of applications. IEEE 802...
Mobile Ad Hoc Networks (MANETs) have been an important research topic for the last years, playing a crucial role within the fast growing sector of mobile communications. At the same time, video applications over mobile devices are becoming widely used by nowadays mobile clients, where the quality in the transmission of such contents will determine the success of these applications in the future. Therefore,...
End-to-end QoS is a challenge for future Internet. A per flow resource reservation can be carried out among heterogeneous domains on the communication path using signaling protocols. When one or both communicating terminals are mobile there is additional complexity. Signaling delays and resource lacking on future paths can dramatically impact user experience. In this paper, a rational future path...
For mobile multi-hop wireless network, IEEE 802.16j/MR network can not only supply large area wireless deployment, but also provide high quality network service to mobile users. In this paper, we will be focusing on QoS supporting for mobile users in the IEEE 802.16-MR network. The probability of a mobile user who visits a RS is known beforehand. With the same visiting probability of each RS and the...
In wireless heterogeneous environment, the integration of wireless access network will be accomplished by seamless handover which contains many challenges i.e. service mobility, vertical handover, common authentication, unified accounting/billing, security mechanisms, QoS and service provisioning, etc. Toward this direction, our research aims to provide a complete integration of heterogeneous network...
The aim of this article is to introduce an approach to providing connectivity on public transport connecting to the wider Internet via heterogeneous networks and prioritizing traffic according to service classes. We present a packet prioritization for each service class: premium, intermediate and default. A railway scenario is considered as our case study to evaluate the prioritization mechanisms...
The following topics are dealt with: wireless communications; wireless networks; networks convergence; social mobility; mobile technology; wireless technology; protocols; mobile network deployment; cognitive vehicular networks; cooperative networks; security; spectrum allocation; radio interfaces; traffic and congestion control; QoS; and resource management.
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