Adaptive Rate Control for Real-Time Video Streaming over the Mobile WiMAX

被引：2

作者：

Lee, Changhyun ^{[1
]}

Song, Kwanwoong ^{[1
]}

Joo, Younghun ^{[1
]}

Kim, Yongserk ^{[1
]}

机构：

[1] Samsung Elect Co LTD, AV Codec Lab, Telecommun R&D Ctr, Suwon 443742, South Korea

来源：

2008 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS 2008), VOLS 1-4 | 2008年

关键词：

D O I：

10.1109/APCCAS.2008.4746305

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

To achieve high video quality for real-time video streaming over the mobile WiMAX network, it is necessary to adaptively adjust the target bit rate of the video encoder based on verified network status. Since it is difficult to verify network congestion using only PHY-layer parameters, this paper proposes an algorithm for verifying network status by using a MAC-layer parameter implying PHY-layer information and then correspondingly adjusting the target bit rate. The results show that the proposed algorithm achieves a video quality 0.7 to 6.3 dB higher than that achieved with fixed target bit rates over the mobile WiMAX network.

引用

页码：1454 / 1457

页数：4

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