Seamless video streaming for video on demand services in vertical handoff

Authors:
Jae-Won Kim;Hye-Soo Kim;Jae-Woong Yun;Hyeong-Min Nam;Sung-Jea Ko
Affiliations:
Department of Electronics Engineering, Korea University, Seoul, Korea;Department of Electronics Engineering, Korea University, Seoul, Korea;Department of Electronics Engineering, Korea University, Seoul, Korea;Department of Electronics Engineering, Korea University, Seoul, Korea;Department of Electronics Engineering, Korea University, Seoul, Korea
Venue:
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
Year:
2005

Citing 5
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Abstract

Vertical handoff is required to achieve anywhere and anytime internet access in the fourth generation (4G) network providing interoperability between universal mobile telecommunications system (UMTS) and wireless LAN (WLAN). However, video data can be lost due to latency caused by vertical handoff. To solve this problem, in this paper, we propose a video streaming method for video on demand (VOD) services that provides seamless playout at the client in vertical handoff. In the proposed method, the streaming server first predicts the network status by using both the channel modelling and the client buffer status and then selects a proper video transmission method for vertical handoff among pre-transmission, post-transmission, and frame-skipping transmission. Performance evaluations are presented to demonstrate the effectiveness of the proposed method.