The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In order to manage Quality of Service (QoS) and energy efficiency in the optical access network, an online Dynamic Bandwidth Allocation (DBA) algorithm with adaptive sleep cycle is presented. This DBA algorithm has the ability to allocate an additional bandwidth to the end user within a single sleep cycle whose duration changes depending on the current buffers occupancy. The purpose of this DBA algorithm...
Supporting end-to-end quality of services for real-time interactive video applications such as videoconferencing and distance learning across the Internet requires a collection of independent networks or domains to work together to route packets between source and destination. Routing packets across the Internet using a feasible path - a path that meets the quality of service (QoS) attributes of video...
With the increasing usage of cloud computing and dependence on a diverse set of distributed applications, users are reliant on consistent outcomes from a shared infrastructure. This drives the need for improved QoS guarantees for heterogeneous communication requirements over shared networks. The Recursive Inter-Network Architecture (RINA) is a fundamental programmable network architecture that provides...
Vehicular networks are increasingly gaining popularity among researchers for their potential to enable diverse applications associated with road traffic safety, infotainment and road transportation management. In this paper we present a QoS-based routing protocol named VanetQoS which purpose is to accommodate real-time and multimedia applications with specific quality of service (QoS) requirements...
The smart grid is a modern electricity grid that uses wireless technologies to control and supervise the substation and the electricity generation and consumption sides. Several wireless technologies can be used for smart grid communication such as Long-Term evolution (LTE) and Worldwide Interoperability for Microwave Access (WiMAX). However, LTE is the most compatible network for the smart grid because...
This paper will discuss about transmission of multimedia content in limited capacity network (up to 5 Mbps), especially to study about the impact of background traffic towards multimedia content delivery quality in a limited capacity network. Observation methods proposed in the study include measurement of limited capacity network, background traffic modeling, and simulating the network to observe...
Connection Admission Control (CAC) is one of the resource allocation functions which plays a significant role to ensure Quality of Service (QoS) provisioning in wireless networks. To meet connection requirements, and achieve bandwidth efficiency with less computation complexity, we present a CAC mechanism for OFDMA-based WiMAX networks which uses fuzzy sets and fuzzy logic theory to admit new incoming...
In Ad Hoc technology, a mobile node is characterized by a limited battery power. Therefore, the energy consumption becomes an important challenge that must be taken into account when designing a new Ad Hoc routing protocol. An efficient routing protocol should also consider a high level of Quality of Service (QoS) such as the end-to-end delay and the bandwidth as the applications do not have the same...
The video, voice, multimedia next-generation applications are using real-time data transmissions. Therefore, taking into account that all these applications are transmitted “over IP”, variable bandwidth has to be provided for specific situations in order to prevent network congestion. The active equipments meet these requirements and provide the network management. However, how will it be if the network...
Efficient and optimized data transfer in broadband is the anchor point of digital economy in modern era. One the most challenging issues for providing different services in broadband is the bandwidth allocation. That is a real-time multi dimensional problem solving requiring to satisfy QOS and SLA constraints at the same time. In this paper, we present a real-time adaptive framework for the problem...
The complexity of network routing infrastructures is increased dramatically. To tackle this issue, a promising state-of-the-art paradigm called software defined networking (SDN) is introduced. Due to the differences in the network requirements of applications, QoS-aware routing plays an important role in the networks. Recent proposed resource allocation algorithms focus on the current traffic matrix...
There has been a strong focus on the evaluation of Quality of Service (QoS) and multimedia transmission over protocols of internet protocol (IP). The main goal of this paper is to evaluate the performance of QoS in real implementation, also a comparison of an appropriate video and voice (CODECS) over IP schemes depending on the SIP and IAX2 protocols based on the Asterisk PBX server(s), an open source...
The QoS (Quality of Service) requirements of real time (RT) applications are within the most important challenges that LTE (Long Term Evolution) must provide. However, due to the limited radio resources, it is important to take advantage of these resources efficiently. User traffic can be classified into two main classes which are RT (Real Time) and NRT traffic. To respond to RTs QoS requirements,...
In this paper, we propose a new routing algorithm which calculates bandwidth-delay constrained routes in the fast and efficient manner. The algorithm is designed for the software-defined backbone networks, where the control plane is separated from the data plane and logically centralized. Besides providing the required quality of service (QoS), the algorithm aims to maximize utilization of network...
A novel multi Optical Line Terminal (OLT) based WDM/TDM Passive Optical Network (PON) is proposed to ensure the Quality of Service (QoS) and fault protection for next generation(NG) PON systems. The future PON systems provide higher bandwidth and accommodate many types of users, its service level must be differentiated and this property should be maintained even during a protection mode. To meet this...
This paper presents a scalable solution for guaranteeing bandwidth to interactions/communications assuming no information is provided by the applications. The objective is to define and assess what the network can do with so little information both in terms of guaranteeing quality and preventing being throttled by overloads. The suggestion of having applications indicating their needs did not materialize...
In 5G, heterogeneous broadband networks will emerge to a common set of objectives to offer the end users higher capacity, robustness, security, QoS, and more in a unified and converged manner. In order to provide end-to-end QoS support to application services over the heterogeneous networks, a common QoS framework is proposed in this paper. The framework consists of a two-level scheduling scheme:...
Long Term Evolution (LTE) is rapidly flourishing in the global market due to its speed, coverage, relative ease of deployment, and consistency. However, Quality of Service (QoS) provisioning scheme is not fully defined for LTE, and it is left open for researchers to explore. In this paper, we propose a QoS provisioning technique for LTE. This technique involves a two-level scheduling scheme, consisting...
In mobile communication, User Equipment (UE) always demands to be on the network and to perform different errands using applications like file transfer, video streaming and conferencing and other applications like messaging, etc. It needs higher bit rate and hence, UE in recent networks like 4G heterogeneous wireless network continuously use vertical and horizontal handover. For better Quality of...
Recent years have seen a growing interest in Vehicular Ad hoc Networks (VANETs) and their benefits to the development of intelligent transportation systems (ITS). With the deployment of multimedia services over VANETs, there is a need to develop new approaches to insure higher level of quality of services (QoS) for real time applications, and integrate QoS into routing protocols. However, in VANET...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.