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We focus on QoE-optimized video delivery in a wireless heterogeneous network setting, where users equipped with multi-interface devices access a Dynamic Adaptive Streaming over HTTP (DASH) video service. We provide an Integer Linear Programming (ILP) formulation for the problem of optimal joint video quality and network interface selection and a heuristic algorithm to solve it, shown via simulation...
Traditional libraries provide an Online Public Access Catalog (OPAC) as a portal for searches. Unfortunately, the call numbers patrons receive as a response lack the explicit information to guide the patron to the shelf in question. This can lead to a complicated and often time-consuming search, particularly in large multi-level structures. In this study, we developed a panorama-based navigation service...
Dynamic Adaptive Streaming over HTTP (DASH) is currently a widely adopted technology for video delivery over the Internet. DASH offers significant advantages, enabling users to switch dynamically between different available video qualities responding to variations in the current network conditions during video playback. This is particularly interesting in wireless and mobile access networks, which...
As a high-tech industry, the development of the Internet of Things industry plays an important role in the industrial transformation and upgrading of a country. In light of the six elements of the “Diamond Model”, this paper constructs an indicator system to assess the competitiveness of the Internet of Things industry. Using a comprehensive evaluation method which combines Gray Relational Analysis...
In this paper, a quality-of-experience (QoE)-based user scheduling scheme for delay-sensitive mobile cloud services (MCS) is proposed. The proposed scheme aims at optimizing the user QoE, which is mainly determined by both the application-level and network-level quality of services. Packet delay, as an essential factor affecting QoE, is discussed under the context of QoE optimization. The optimization...
With the development of LBS(Location Based Services), transportation of spatial data in wireless Web has become hot point in current research. After the existing solutions are compared and extended in the paper, a new SVG_ based solution is provided to represent and compress spatial data. And then the key technologies in the fields of SVG data compression are researched and resolved, in which the...
Due to the rapid growth of mobile networks, many advanced applications have been deployed. However, security of data will be an important factor for their full adoption. Most of these applications will be utilized on resource constrained devices, which makes security protocols currently used in wired networks not fully applicable to mobile networks. Recently, a number of key agreement protocols have...
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