2011/11/16 by Aytac Azgin, Azgin, Aytac, Y. Altunbasak +2
Computer Science · #Caching and Content Delivery #FOS: Computer and information sciences #Image and Video Quality Assessment #Multimedia (cs.MM) #Networking and Internet Architecture (cs.NI) #Peer-to-Peer Network Technologies #cs.MM #cs.NI
paper · pdf · doi:10.48550/arxiv.1111.3711
Compared to the previous version, corrected a few typos and simplified two figures
openalex publication_date 2011/11/16 · arxiv created 2011/12/17 · arxiv updated 2011/12/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In IPTV networks, channel change latency is considered as a major obstacle in achieving broadcast-level quality video delivery. Because of the bandwidth limitations observed at the client side, users typically have access to a limited number of channels. As a result, channel change requests oftentimes need to go through the network, thereby leading to significant delays. In this paper, we address this problem by proposing a resource-efficient time-shifted channel reordering mechanism to minimize the channel change latency. The proposed framework exploits the differing key-frame delivery times for the adjacent sessions to dynamically arrange the switching order during the surfing periods. The simulation results show that, with the proposed framework, more than 50% improvement can be achieved in channel change latency without introducing any overhead in the network.