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In this paper, we introduce a new video-streaming framework that is based on a novel packet design in conjunction with low-complexity active queue management within the network. Our proposed framework, which we call Erasable Packets within Internet Queues (EPIQ), exploits the inherent multi-priority nature of video to deliver optimal quality-of-experience to users, yet without requiring any additional...
Internet video is currently one of the most popular Internet services, accounting for more than 50% of the overall Internet traffic. Various access patterns of users worldwide contribute to increasing complex scenarios of Internet video. Under the circumstances, there emerges a valuable yet challenging topic that industry and academia keep focusing on: how to evaluate quality of experience (QoE) of...
In this paper, we analyze flow-based routing schemes in SDN. Specifically, we study the flow-based routing performance; combining the knowledge of the link condition and updating the period for calculating the path. The framework uses centralized control of SDN where the SDN controller calculates available paths to determine the routing policy based on a global knowledge network. This flow-based routing...
To ensure that end-users and consumers have access to comprehensive, comparable and user-friendly information regarding to the internet access service quality, particularly on open internet access is necessary to implement and regularly renew the set of legislative regulatory acts and to provide monitoring the quality of Internet access services. Provided measurement methodology principles offers...
In this paper, we introduce a new Active Queue Management (AQM) paradigm and a corresponding congestion control mechanism for a novel video-streaming framework. We call the proposed framework Erasable Packets within Internet Queues (EPIQ). EPIQ exhibits best-effort complexity within the network, similar to the networking complexity of HTTP-based Adaptive Streaming (HAS); yet EPIQ can provide optimal...
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...
Learning service selection in context-aware ubiquitous learning systems is affected not only by human errors, those of sensors but also by the dynamic aspect of these systems. The service selection in these systems is based on the learner QoS requirements, needs. However, these latter are based on vague linguistic terms which should be represented by fuzzy set theory. To this end, we have proposed...
This era of internet of things (IOT) and ubiquitous computing technology demands that their potential be leveraged in all areas of human life. Towards this effort this paper proposes a novel architecture for intelligent transport system (ITS) for surveillance based on 6LoWPAN technology which also combines ubiquitous computing technology. The novelty of the proposed architecture lies in integrating...
Bundling the resources of different access links is a measure to improve throughput and resilience to network failure. This paper proposes a solution able to bundle the own DSL resources with available resources of neighbouring DSLs. The solution is based on links between the DSL routers (e.g. using Wi-Fi technology) which are used by the bundling algorithm to distribute data packets over the available...
The trend of grid computing available on the Internet has generated challenges to the allocation of resources provided by this type of environment. Once a grid computing is context sensitive system, so its possible to deal jointly with user's satisfaction and system performance. In this sense the quality of context can be used to process the context informations and provide several management decisions...
As a new networking paradigm adapted to the shift of Internet usage, named data networking (NDN) shows a promising prospect. The enhanced NDN data plane calls for a flexible management of the incoming requests. In this paper, we tackle the problem of designing a forwarding strategy of content requests for NDN from a single-node point of view. Based on the Semi-Markov Decision Process (SMDP) theory,...
The objective of this work is the investigation of a possible collaboration between Over-The-Top (OTTs) service providers and Internet Service Providers (ISPs), which is centered around the Quality of Experience (QoE). Initially, we define a reference architecture with the required modules and interfaces for the interaction between the two providers. Then, we focus on the modeling of the revenue,...
Ubiquitous Learning changing the existing paradigm of learning that is a learning process everywhere, every time and anything into the learning process right place, right time and the right thing, so that the determination of the appropriate content for the user and the system's ability to adapt to the user is important in ubiquitous learning. Context aware in ubiquitous learning can be used to achieve...
Information-Centric Networking (ICN) or Content-Centric Networking (CCN), as it also known for, has recently been proposed as an evolutionary framework to propel the current Internet network architecture towards a content oriented design. Mobility-aware caching can be deemed as indispensable for improving the experience of mobile users. To this end, we propose a proactive caching with redirection...
Achieving high-quality voice conference calls over the Internet is a difficult task. Heterogeneous mobile devices and network dynamics must be properly managed by multiparty VoIP systems to ensure a good quality of experience. In this paper, we propose a multiparty VoIP system based on SDN technology that uses both multicast distribution and dynamic stream adaptation to optimize the conference call...
In this work, we investigate the problem of context-aware data caching in the heterogeneous small cell networks (HSCNs) to provide satisfactory to the end-users in reducing the service latency. In particular, we explore the storage capability of base stations (BSs) in HSCNs and propose a data caching model consists of edge caching elements (CAEs), small cell base stations (SBSs), and macro cell BS...
This paper presents a new method for selection between replicated servers distributed over a wide area, allowing application and network providers to trade-off costs with quality-of-service for their users. First, we create a novel utility framework that factors in quality of service metrics. Then we design a polynomial optimization algorithm to allocate user service requests to servers based on the...
Tactile internet requires ultra-low latency and ultrahigh reliability, which bring new challenges to the design of mobile systems. In this paper, we study how much resources are required to ensure the short end-to-end (E2E) delay and high reliability by taking a vehicle communication system as an example, where the E2E delay includes both queueing delay and transmission delay, and the reliability...
Software Defined Networks (SDN) is a new technology providing a programmable network by separating control and data planes of computer networks. SDN technology can provide an increase in the performance of Internet applications by implementing routing approaches specific to such applications. In this paper, we propose a server and end-to-end path selection approach for a content distribution network...
We introduce a distributed, dynamic, end-to-end (E2E) service-level management framework over a multi-domain SDN in order to enable end users to negotiate with their service providers a level of service according to their needs and budget. In this framework, the service provider offers multiple levels of service and allocates network resources to each user to satisfy specific service level requests...
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