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Video streaming has become one of the most prevalent mobile applications, and takes a huge portion of the traffic on mobile networks today. YouTube is one of the most popular and volume-dominant video content providers. Understanding the user perception on the quality (i.e., Quality of Experience or QoE) of YouTube video streaming services is thus paramount for the content provider as well as its...
In this paper, we design a social-relations-based routing algorithm (SRBRA). Firstly, by analyzing the real-time data from mobile nodes in the network, we summarize and extract factors that affect social relations between these mobile nodes. Then make inference and evaluation for the complexity and dynamic of these factors from multiple angles, calculate the social-relations values between each sensor...
In cellular mobile communications, multipath fading, shadowing, near-far problem and the Doppler effect have led to a complex radio wave propagation environment. Furthermore, with the continuously increasing of users and operations, not only new bandwidth is required, new technologies and measures are also expected to improve the system capacity and channel capacity. This paper introduces the general...
In this paper we present empirical results from a study, examining the effects of environmental diversity on vehicle-to-vehicle link in vehicular ad hoc networks (VANET). And packet loss rate (PLR) and received signal strength indicator (RSSI) of the wireless link are measured. The results of the measurement indicate that environment affects the quality of the wireless link in VANET greatly; the average...
In this paper, we define a mobile self-localization (MSL) problem for sparse mobile sensor networks, and propose an algorithm named mobility assisted MDS-MAP(P), based on multi-dimensional scaling (MDS) for solving the problem. For sparse sensor networks, all the existing localization algorithms fail to work properly due to the lack of distance or connectivity data to uniquely calculate the geo-locations...
Remote monitoring systems based on Web-server-embedded technology and mobile telecommunication will become a core node technology in sensing network construction because of a great deal of mobile users and spreads of digital services in next generation telecommunication in the world. Soil, environmental, and crop information monitoring are important in production management and decision-making in...
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