To provide multiservice in access network may effectively reduce operation, maintenance and network construction expense and also increase network utilization rate.
在接入网中提供多业务可以有效地降低运营维护成本和网络铺设费用，同时提高网络利用率。
Rate control techniques must then be employed to regulate and control the output bit rates of video sources in the network to achieve the best trade-off between quality and bandwidth utilization.
这就需要采用码率控制技术来调整并控制视频源的输出比特率，以获得在质量和带宽利用间的最佳均衡。
Network coding can improve the utilization rate of spectrum in wireless communication system.
网络编码可以提高无线通信系统的资源利用率。
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