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The paper describes the testbed to determine the effectiveness of an approach to build network storage using Software-Defined networks (SDN) OpenFlow. It is assumed that main protocol to SAN is iSCSI over local area network. Prototyping tools for managing network resources and data flows on the basis of SDN and testing environments based on Free and Open Source software. We describe experiments with...
The proposed routing protocol BQAODV considers link stability, available bandwidth estimation, direction conformity and delay constraint based on AVAODV routing protocol. It selects a highest link stability route which meets available bandwidth, direction conformity and delay constraint during the search for a new route. The simulation results show that BQAODV's data packet loss rate and average end-to-end...
Quality of Service (QoS) is an important network performance parameter having significant impact on real time applications like VoIP, Interactive gaming and Video Streaming. Although IPv6 was designed to improve addressing, security and QoS in IPv4, services like Video Conferencing and VoIP with strong reliance and sensitivity towards delay and jitter pose a daunting challenge in today's packet based...
The Internet is rapidly to the across network domain service delivery platform evolution, at the same time, existing based on the content of the Internet payment method is lack of the guarantee of quality of service. The future of the Internet research, to solve the current issues in the current network is put forward a few promising ideas. Such as, federations across network domain and end-to-end...
Quality of experience (QoE) indicates users' perception of an Internet service or business in objective conditions, which is significantly meaningful to service providers or network operators to improve their quality of services and to utilize valuable network resources efficiently. Online video service has become the most fast-growing Internet service in recent years. Building models for QoE evaluation...
Service differentiation is known as on the classic and major tasks in IP networks. We propose a novel queuing method which benefits both “Less Impact Better Service” (LIBS) and fuzzy logic paradigms. LIBS leads us to a queuing method called non-congestive queuing, which prioritizes small packets when conditions permit to limit the delay impact of prioritization on congestive applications. In our proposed...
The recent high-bandwidth demand multimedia applications have driven the need for higher bandwidth and faster access network architecture. However, conventional single-channel Ethernet Passive Optical Networks (EPONs) cannot fully realize and satisfy the multimedia demands. Wavelength Division Multiplexing (WDM) EPON is one of the best solutions for supporting the converged triple-play services such...
A fully functional hybrid cloud solution requires a placement service to automatically decide whether an application should be deployed on premise, in a public cloud, or across private and public clouds. Such a service must consider application structure and communication patterns, application affinity requirements, which usually result from data protection rules, and deployment costs. In this paper,...
In this paper, we propose an Optical Line Terminal (OLT) based NetFPGA Platform for Peer-to-Peer (P2P) live streaming delivery in EPON. In the proposed architecture, using the Field Programmable Gate Array (FPGA), we design new locality awareness mechanisms in OLT to improve the Quality of Service (QoS) and traffic localization utilization of P2P live streaming traffic. By using the NetFPGA incorporate...
One of the solutions to overcome the network congestion issue over the WAN is to deploy QoS. However Service Provider rarely utilized the QoS function to avoid any implication on the network because it requires high maintenance and attention from network administrator. Usually they would propose customers to add more bandwidth due to congestion but it would only resolve the congestion issue temporarily...
The mobile network services are getting popular in Campus networks. However, the incoming challenge is, at the headquarters and remote sites, that mobile users require the same accessibility, security, quality of service (QoS), and high availability currently enjoyed by wired users.
Feedback mechanism based algorithms are frequently used to solve network optimization problems. These schemes involve users and network exchanging information to achieve convergence towards an optimal solution. However, in implementation, these algorithms do not guarantee messages will be delivered to the destination, especially when network congestion occurs, which in turn often results in packet...
In this paper we propose a utility-based scheduling mechanism for mixed traffic in wireless networks to mitigate the problem that current scheduling algorithms cannot have a good performance in mixed traffic. The proposed algorithm called UBSA (Utility-Based Scheduling Algorithm) works in wired-wireless hybrid networks. Packets of diverse QoS (Quality of Service) classes are allocated to different...
Though the decades of great success the Internet has experienced, it still confronts with many challenges to achieve QoS of various business types. A consensus has been reached that resource allocation presents a tremendously status in such a network bandwidth poor settings. In this paper, we bring the knapsack problem idea into reconfigurable network architecture (RNA), which is proposed with the...
Mobile Ad Hoc Networks (MANETs) also called mesh networks, consist of a large number of mobile nodes that communicate with each other in the absence of any fixed infrastructure or centralized administration. The principle characteristics of MANET are the dynamic topology and the limited battery power of mobile nodes. The discharge of the battery causes many problems such as the loss of the packets...
The topological design of a network is a key challenge in order to supply a large set of requirements from telecommunication services required by customers, which include bandwidth capacity, fault tolerance, low levels of delay, security, among others. The fulfilment of such requirements will directly impact on quality of service and customer satisfaction. In order to deal with this problem, one can...
Quality of Service (QoS) is considered as the standard check of a conveyance system to show provided services and its availability. For illustration application like video conferencing, voice over ip (VOIP), streaming videos, real time operation feel necessity for draconian assurance on jitter, packet loss, prioritization of services and end-to-end delay. So to overcome these issues a novel scheme...
Video-on-demand service is becoming more and more attractive and it also leads to rapidly rising in energy consumption. Traditional batching transmission scheme can reduce the transmission power consumption but it inevitably causes some delay. On the contrary, traditional patching scheme can provide real time service to meet user requests but it will generate many unicast patching streams when a lot...
Efficient Quality of Service (QoS) has become new challenge in Wireless Local Area Networks (WLANs). Voice over Internet Protocol (VoIP) is an important service with strict quality of requirements in Wireless Local Area Network (WLANs). The IEEE802.11e introduced a contention window based technique that is Enhanced Distribution Channel Access (EDCA) that provides a prioritized traffic to guarantee...
As we move towards packet switched based multimedia wireless cellular networks supporting different kinds of applications, QoS guarantee for such applications will be challenging tasks. This article makes a brief review of several techniques for QoS provisioning in wireless cellular network‥ These techniques are classified into five categories: call admission control and bandwidth reservation, buffer...
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