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In Wireless Mesh Networks (WMNs), users can enjoy the real-time video streaming service anytime and anywhere through the service. Compared to the client/server model, the P2P (Peer-to-peer) approach is more suitable for video streaming applications because of its efficient usage of network resources. However, the multimedia applications are very sensitive to delay time and the performance of packets...
We present a receiver-based rate control scheme in an infrastructure network. A mobile device to receive video stream over wireless plays an important role to decide its rate. As an inter-packet delay (IPD) at the sender decreases, the sending rate increases so that the IPD can be adjusted to control the rate, depending on the receiver buffer occupancy. At every round-trip time, such adjustments will...
In this paper, we aim to present the fundamental properties of a community-driven adaptive P2P streaming scheme. We show that if the participants in a community network agree to not only share their bandwidth, but also their computing resources according to the design principles mentioned here, then mobile and heterogeneous devices can be accommodated in the P2P paradigm ensuring adequate resource...
In real-time playing of network audio-video, because of delay and dithering, effective data caches processing and audio-video synchronization control must be carried out to resume time connection among data. A scheme of using DataSet to process data in caches is proposed. Synchronous control method of thread and arithmetic of audio-video synchronization playing are discussed in detail. The new scheme...
In VoIP (Voice over Internet Protocol) applications, packet loss affects the received speech quality greatly. PCM (Pulse Code Modulation) coders are often used for VoIP and also face such problems. In this paper a side information based packet loss recovery algorithm is proposed, which introduces a small part of corrective information to provide an enhanced reconstruction of the lost packets. A virtual...
This contribution addresses the case when live packet-switched video is used to enrich circuit-switched speech calls in mobile telephony. Circuit-switched and packet-switched transmissions generally operate on completely different transmission paths resulting in different QoS in terms of delay and loss rates. In this case, video and audio data recorded at the same time are not multiplexed together...
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