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Adaptive and integrated video communications for wireless ATM in WCDMA systems

机译:WCDMA系统中用于无线ATM的自适应和集成视频通信

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Highly efficient and robust source coding, channel coding, packetization and RAKE receiver techniques are proposed for video streaming over wireless ATM in WCDMA systems. At the base station, video received from the wireline source is dynamically transformed to match both the hardware capabilities of mobile hosts and the time-varying wireless channel conditions. For the wireless transmitter and receiver, source coding, channel coding, packetization and RAKE receiver are jointly implemented as part of the application. For source coding, we proposed to use three-dimensional significance-linked connected component analysis video coding. For channel coding and packetization, we used turbo coding. Since wireless channel is time varying and there is deep fading, we adopted a pilot structure in each slot, and a RAKE receiver. The channel estimation adopted an adaptive Kalman filter channel to track the time-varying channel based on an AR model. Extensive performance evaluation demonstrates the effectiveness of the proposed wireless video streaming technique.
机译:针对WCDMA系统中无线ATM上的视频流,提出了一种高效且健壮的源编码,信道编码,分组和RAKE接收器技术。在基站,将从有线源接收到的视频进行动态转换,以匹配移动主机的硬件功能和随时间变化的无线信道条件。对于无线发送器和接收器,源编码,信道编码,打包和RAKE接收器作为应用程序的一部分共同实现。对于源编码,我们建议使用三维重要性链接的连通分量分析视频编码。对于信道编码和分组化,我们使用了turbo编码。由于无线信道会随时间变化并且会逐渐衰落,因此我们在每个时隙中采用了导频结构,并采用了RAKE接收器。信道估计采用自适应卡尔曼滤波信道,基于AR模型跟踪时变信道。广泛的性能评估证明了所提出的无线视频流技术的有效性。

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