Harmonic broadcasting for video-on-demand service
- 1 January 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Broadcasting
- Vol. 43 (3) , 268-271
- https://doi.org/10.1109/11.632927
Abstract
Using conventional broadcasting, if we want to support a 120-minute popular movie every 10 minutes, we need 12 video channels. Assuming the set-top box at the client end can buffer portions of the playing video on a disk, pyramid broadcasting schemes can reduce the bandwidth requirements to 5.7 channels. We present a new scheme which only needs 3.2 channels. For a movie with length D minutes, if we want to reduce the viewer waiting time to D/N minutes, we only need to allocate H(N) video channels to broadcast the movie periodically, where H(N) is the harmonic number of N, H(N)=1+1/2+…+1/N. In order to support video-on-demand service for a popular movie, the new scheme greatly reduces the bandwidth requirementsKeywords
This publication has 2 references indexed in Scilit:
- A permutation-based pyramid broadcasting scheme for video-on-demand systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Metropolitan area video-on-demand service using pyramid broadcastingMultimedia Systems, 1996