| Summary: | 碩士 === 國立臺灣大學 === 電機工程學研究所 === 94 === ABSTRACT
With the prevailing of wireless communication, transmission of video applications through wireless network becomes an important issue. Comparing to wired network, the data transmission is more unstable and the bandwidth is less in wireless network. Thus, video transmission over wireless network becomes more challenging.
Since available bandwidth during transmission varies frequently, in order to maintain the video quality and utilize the available bandwidth, a method which modifies video bitrate with varying bandwidth is required. In this Thesis, we combine queuing theory, H.264/AVC standard and corresponding rate control scheme to achieve this purpose. We build a video bit rate control queuing model to describe the buffer behavior of the encoder. Then deduce the appropriate video bitrate form this model. The experimental results show that this method not only reaches the balance between acceptable latency and the video quality, but also utilizes the memory of handheld device.
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