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Cloud Radio Access Network (C-RAN) is a novel mobile network architecture which can solve lots of challenges in the next generation mobile communication system, including the demand for higher energy efficiency(EE). In C-RAN EE research field, most of recent work focuses on systematic energy saving and ignores the needs of users. To improve the performance of C-RAN under fronthaul capacity constraint,...
Designing a real-time video-streaming system involves the challenges of, network congestion and bandwidth fluctuations, lowering the video quality. In this paper, a realtime video-streaming system is designed and implemented for scalable video coding (SVC) with an adaptive control scheme, containing macro- and micro-control, to resolve the bandwidth fluctuation and network congestion. Under macro-control,...
Delivering multimedia streaming on Internet remains several limitations, such as bandwidth fluctuations and network conjunction. We present a multimedia gateway design including dynamic bandwidth estimation, SVC extractor and buffer management to resolve the limitations. The dynamic bandwidth estimation not only selects the appropriate SVC sub-stream, but also measures the change of bandwidth and...
This paper proposes a remote thin client system for real time multimedia streaming over VNC. A remote frame can be split as two parts, i.e. high motion part and low motion part, and transmitted through the Internet from servers to clients according to the proposed hybrid RTP protocol. A Dynamic Image Detection Scheme (DIDS) is proposed to automatically detecting the high motion part of a frame with...
With the growing of Internet service and users, multimedia video streaming application becomes more popular. There are two limitations: limited bandwidth affects high quality video delivery and high bit error ratio reduces system throughput. A packet with bit error is dropped in transport layer. H.264/AVC support high coding efficiency and network friendly. UDP-Lite is an idea that by pass packet...
In this paper, we propose a new framework which integrates the optimal share policy with reservation-based algorithms to provide an improved allocating resource reservations for real-time applications in Vehicular Application Specific Operating Systems. While the reservation-based scheduling algorithm realizes performance isolation of real-time applications, optimal share resource allocation policy...
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