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Ground personnel at the tactical edge often lack data and analytics that would increase their effectiveness. To address this problem, this work investigates methods to deploy cloud computing capabilities in tactical environments. Our approach is to identify representative applications and to design a system that spans the software/hardware stack to support such applications while optimizing the use...
In current Internet, most of the traffic dedicated to video streaming applications. In recent years, Peer-to-Peer (P2P) streaming approach has gained more attention, due to the high cost of providing the required bandwidth for a large number of users in Client-Server model. Mesh-based peer-to-peer video streaming is a robust approach which recently employed in many multimedia networking applications...
The evolution of Cloud Computing beyond the frontier of a single datacenter is justified as a mean to enhance various system architecture aspects like: cost, geo-locality, energy efficiency and structural properties. Orchestration of different cloud providers in order to ensure better Quality of Service (QoS) is refered to as Multi-Cloud. One such multi-cloud federation model is Community Clouds,...
Wireless data traffic, especially video traffic, has been growing at a rapid pace. Innovative network architectures and protocols are needed to improve the efficiency of data delivery. The trend toward integrating advanced information technologies and communications technologies is creating unprecedented opportunities in the design of infrastructure for network-centric services. The rapid growth in...
Broadband access to the Internet at home was the first step in the emergence of so home networks. In a close future, the number of appliance connected will rise and the network will become the home backbone. Its architecture has to evolve to tackle those new challenges. After a study of the network requirements, this paper introduces a complete system to pilot the forwarding ensuring a proper QoS...
It is widely recognized that next generation wireless networks will integrate heterogeneous wireless technologies. Nowadays, the borders among the different wireless network technologies are quickly disappearing. UMTS and WLAN, a popular and representative interworking paradigm, provides a plethora of multimedia services to mobile users with multimode access capability. In this paper, we propose an...
Compared with the traditional client/server streaming model, peer-assisted video streaming has been shown to provide better scalability with lower infrastructure cost. In this paper, we describe how peer-assisted video streaming can be implemented through real-time service oriented architecture. Our architecture, dubbed PACTS, is composed of 5 distinct service components: directory service, content...
This paper describes a methodology for building a reliable internet core router that considers the vulnerability of its electronic components to single event upset (SEU). It begins with a set of meaningful system level metrics that can be related to product reliability requirements. A specification is then defined that can be effectively used during the system architecture, silicon and software design...
Considering the high packet losses and low, varying bandwidth of GPRS/EDGE network and limited computation power of handheld devices, we present and implement a novel SVC video-on-demand system for hand-held devices over GPRS/EDGE network. For the purpose of handling varying bitrate, we propose a priority based layer switching (PLS) adaptation scheme for SVC stream, which not only performs online...
This paper explores the attributes, layering models and objective functions in cross layer designs for mobile ad hoc wireless networks by taking all the statistical characteristics and constraints from the physical (PHY) layer, media access control (MAC) layer and network (NET) layer into consideration. This paper reviews the entire network optimization across all the PHY/MAC/NET layers. At the PHY...
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