TY - GEN
T1 - Buffer replacement algorithm for merge-based multicast video-on-demand system
AU - Zhu, Qi
AU - Shao, Ling
AU - Yan, Rong
AU - Zhang, Jian
AU - Xie, Dong
N1 - Publisher Copyright:
©2003 IEEE.
PY - 2003
Y1 - 2003
N2 - The traditional buffer replacement algorithms do not perform well in the multicast Video-on-Demand (VoD) systems. In this paper, we propose a new algorithm named Urgent Overlap Frequency (UOF) for merge-based multicast VoD servers. It makes good use of the merge property of the multicast channels. Unlike traditional ones that either consider time urgent degree or access frequency, three factors, i.e. time urgent degree, access overlap and access frequency, are considered in UOF algorithm. The experimental results show that UOF can increase the hit ratio 90 percent over LRU/MRU and 20 percent over BASIC algorithm in multicast circumstance. Additionally, the hit ratio of the UOF algorithm is only 4 percent lower than the theoretic optimal result, so it is very suitable for merge-based multicast VoD system.
AB - The traditional buffer replacement algorithms do not perform well in the multicast Video-on-Demand (VoD) systems. In this paper, we propose a new algorithm named Urgent Overlap Frequency (UOF) for merge-based multicast VoD servers. It makes good use of the merge property of the multicast channels. Unlike traditional ones that either consider time urgent degree or access frequency, three factors, i.e. time urgent degree, access overlap and access frequency, are considered in UOF algorithm. The experimental results show that UOF can increase the hit ratio 90 percent over LRU/MRU and 20 percent over BASIC algorithm in multicast circumstance. Additionally, the hit ratio of the UOF algorithm is only 4 percent lower than the theoretic optimal result, so it is very suitable for merge-based multicast VoD system.
UR - http://www.scopus.com/inward/record.url?scp=26444563175&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=26444563175&partnerID=8YFLogxK
U2 - 10.1109/ICTEL.2003.1191647
DO - 10.1109/ICTEL.2003.1191647
M3 - Conference contribution
AN - SCOPUS:26444563175
T3 - 10th International Conference on Telecommunications, ICT 2003
SP - 1448
EP - 1451
BT - 10th International Conference on Telecommunications, ICT 2003
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Telecommunications, ICT 2003
Y2 - 23 February 2003 through 1 March 2003
ER -