A study on reducing transmission delay in mobile video communication systems

被引：0
|
作者：
Matoba, N
Kondo, Y
Yamashina, M
Tanaka, T
机构：
来源：
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 1997年 / E80A卷 / 07期
关键词：
mobile communication; video transmission; H.263; ARQ; fading channel;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Applying ARQ to real time video communication can significantly increase transmission delay due its retransmission operations. We analyze this delay and propose an adaptive error control scheme that uses acknowledgment from the receiver to reduce the delay. We evaluate this scheme using a computer simulation and show that the proposed scheme can reduce the delay by controlling the amount of video data by changing the quantization step size and video frame skipping. It also offers acceptable video quality as confirmed by a subjective evaluation test.
引用
收藏
页码：1281 / 1287
页数：7
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