让科学告诉你答案

我们整理了一些最新的科学研究，它们对一些我们早已熟知的观点进行了检验，并告诉了我们背后的科学道理。[编者按]     

Network-adaptive HD MPEG-2 video streaming with cross-layered channel monitoring in WLAN

INTRODUCTION Video streaming service nowadays enjoys ex- plosive adoptions over all kinds of underlying net- works. To enjoy the freedom of tether-less connection over the wireless local area network (WLAN), we need to overcome many challenges of unstable wire- less channel due to fading, interference and so on. The scarce and fluctuating available bandwidth (together with time-varying delays and random/burst losses) can cause the video quality at the streaming client to be seriously deg…