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SCALABLE CODING QoS CONTROL FOR NEXT GENERATION NETWORK

机译:下一代网络的可伸缩编码和QoS控制

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摘要

Scalable video coding and the quality of serves (QoS) is the next generation networks (NGN) key technique in order to adapt various clients' requirement (e.g. quality, spatial resolution and temporal resolution) and bandwidth variation in heterogeneous network. We propose a reduced dimension scalable video coding using wavelet transformation and QoS control method based on fractal interpolation for the next generation network, and realize different types of bit-stream decoders with different complexity and access bandwidth can coexist. Simulation result shows that the wavelet fractal interpolation algorithm bas better performance than the Bi-linear interpolation and no interpolation. When the channel is congests, the network is the lost high frequency sub-band and transmit low frequency sub-band, and the receiver can recover the lost high frequency by WFI or BLI to satisfy different clients' requirements.
机译:可扩展视频编码和服务质量(QoS)是下一代网络(NGN)的关键技术,目的是适应异构网络中各种客户的需求(例如质量,空间分辨率和时间分辨率)和带宽变化。我们为下一代网络提出了一种基于小波变换和基于分形插值的QoS控制方法的降维可伸缩视频编码,并实现了具有不同复杂度和访问带宽的不同类型的比特流解码器共存。仿真结果表明,小波分形插值算法的性能优于双线性插值和无插值算法。当信道拥塞时,网络成为丢失的高频子带,发送低频子带,接收机可以通过WFI或BLI恢复丢失的高频,以满足不同客户的需求。

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