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4. A New Prefetching Scheme Based on Remote Control Inputs for Random Channel Change in IPTV Multicast Service

Author

Dai-Boong Lee, Hyunchul Joo, Kyungchul Kwak, and Intai Kim

Subjects
Scheme (programming language), Multicast, business.industry, Computer science, 020206 networking & telecommunications, IPTV, 02 engineering and technology, law.invention, law, 0202 electrical engineering, electronic engineering, information engineering, Key (cryptography), Bandwidth (computing), business, computer, Remote control, Decoding methods, computer.programming_language, Computer network, Communication channel
Abstract

We propose an effective prefetching scheme for random channel change in IPTV multicast service. The proposed scheme determines a prefetching channel based on numeric key inputs of the remote control. It can reduce the channel zapping time with a little sacrifice of additional network bandwidth by performing procedures causing delay factors in parallel. Finally, experimental results are provided to show superior performance of the proposed scheme.

Published
2020
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5. An Effective Packet Loss Recovery Scheme Using a Cache Server in IPTV Multicast Service

Author

Intai Kim, Hyunchul Joo, Kyungchul Kwak, and Dai-Boong Lee

Subjects
Scheme (programming language), Service (systems architecture), Multicast, Computer science, Network packet, business.industry, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, IPTV, law.invention, Packet loss, law, Server, Internet Protocol, business, computer, computer.programming_language, Computer network
Abstract

In this paper, we propose an effective packet loss recovery scheme using a cache server in IPTV (Internet Protocol TeleVision) multicast service. In the proposed scheme, the cache server detects which packets have been lost by using the additional information received from STB (Set-Top Box) device. And then, it retransmits these lost packets to STB device. Test results shows the high recovery success rate of the proposed scheme for packet losses over the commercial IPTV network.

Published
2020
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