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An Efficient Packetization Method for the Real-time Internet Video Transmission  

Kim Hyo-Hyun (영남대학교 전자정보공학부 미디어통신연구실)
Yoo Kook-Yeol (영남대학교 전자정보공학부 미디어통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.6C, 2006 , pp. 614-622 More about this Journal
Abstract
In this paper, we propose an efficient packetization method to reduce the packetization overhead. For the purpose, we firstly verify the relationship between packet length and packet loss rate. The empirical results show that as the packet length is larger than the path MTU, the packet loss rate is drastically increased, producing poor visual quality at the receiver side. However, as the length of the packet is reduced, we should transmit more packets per frame and the packetization overhead will be increased. This increase in the packetization overhead reduces the number of bits allocated to the video data, resulting in the low visual quality. Therefore, each packet should be packetized to have the packet length close to the path MTU. In this paper, we show that the this process of the packetization with the constraint on the packet length is very similar to the dynamic storage allocation in the operating system. We had thoroughly surveyed the dynamic storage allocation methods used in the recent operating systems and propose to use the allocation methods for the video packetization. We empirically show that the proposed method can reduce the packetization overhead upto 28.3%, compared with the conventional sequential packetization method which have been widely used in Internet video transmission.
Keywords
Internet video transmission; packetization; overhead reduction; dynamic memory allocation;
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