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A Research on The Real Time Video Traffic Transmission Mechanism in IP Based Mobile Networks  

강문식 (강릉대학교 전자공학과 네트워크연구실)
이준호 (서울산업대학교 전자정보공학과)
Abstract
In this paper, we propose a real time QoS(Quality of Service) guaranteed transmission mechanism for MPEG video traffic at the congested node in IP based networks. Recent spread of the Internet has increased the demands of a real time multimedia service of the quality, Because the type of Internet services can, however, offer the best effort delivery strategies, it is difficult to treat all the types of traffic with differential COS (Class of Service). Most of all, the hierarchical coding method of MPEG data utilizes the reference frame for the motion prediction. The loss of the reference frames makes QoS of the video traffic degraded because the reference frame bit error causes the consecutive packet loss. Therefore we have studied the real time QoS guaranteed mechanism for video traffic by analyzing the previous methods. Computer simulation results show that the proposed scheme has better performance than the previous one.
Keywords
video traffic; real-time transmission; QoS; rate control; mobile network;
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  • Reference
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