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Significant geospatial and temporal correlations, in terms of traffic volume and application access, exist in cellular network usage as shown in recent studies on cellular network measurement. Such geospatial and temporal correlation patterns provide local optimization opportunities to cellular network operators for handling the explosive growth in the traffic volume observed in recent years. To the...
In spite of great efforts to expand the network infrastructure, it is still hard to catch the rapid growing need to serve tremendous subscribers with significant traffic. To effectively allocate the resource among mobile telecommunication operators and Internet Service Providers (ISP), grasping the highly dynamic traffic patterns can enable effective network planning and optimization for state-of-the-art...
Rate control (RC) is a key technique to have a significant effect on encoder performance. And parallel video coding frameworks are widely used in ultra-high definition (UHD) real-time video coding. However, most of RC algorithms mainly focus on the rate-distortion (RD) performance without considering the parallel data dependence and implementation complexity on many-core platform. In this paper, we...
MPEG-DASH introduced open standards into HTTP streaming, which was a huge step forward. The scope of the MPEG-DASH standard was limited to the Media Presentation Description (MPD) format of the manifest files as well as the segmentation standards for the server, but did not include the client application as part of their standards. Particularly a good representation switching algorithm at DASH client...
This paper presents a 3G wireless video surveillance system solution. The system has four cameras collecting real-time information compressed by MPEG-4 inside and outside one bus, then the information will be sent to the monitor center through 3G network. The system corrects video data with LDPC codes, and uses LDAP managing bus and cameras information in the terminal. Experiment shows that the monitoring...
In this paper, we presents a scalable video coding transmission system with error correction of high-resolution multi-view stereo video with LDPC (Low Density Parity-Check Codes). In order to ensure the quality of service, we design two transmission modes with scalable video coding technology. The system could switch the transmission mode according to the channel bandwidth or the agent devices in...
With the advancement of sensor, communication and information technologies, Wide Area Monitoring, Protection and Control (WAMPAC) systems have been identified as the new generation of solutions to improve power system planning, operation, and maintenance. With huge amount of real-time data collected through distributed sensors deployed in a wide area, effective information presentation has become...
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