Abstract
Peer-to-peer (P2P) applications such as P2P video streaming and internet video calling have
gained tremendous popularity and are expected to be vastly increasing in the next few years.
However, low-cost large-scale video services have remained an intangible goal. The ethernet
passive optical network (EPON) is being regarded as one of the promising for next-generation
optical access solutions in the access networks attempt to tackle this problem but facing a major
challenge to offer scalable large-scale video services. Therefore, in this paper, we propose an
architecture which combines the advantages of EPON and P2P architecture to provide scalable
Internet Protocol delivery multimedia services and improve quality-of-services. In the proposed
architecture, we design new optical network unit (ONU) mechanisms, which support traffic
redirection communication among ONUs in combination with caching. Thus, it can reduce the resource
consumption and add extra downstream bandwidth at the optical line terminal since the intra-PON
traffic is not necessary to be buffered and scheduled in the downstream direction. Finally, we
propose a “Redirect” dynamic bandwidth allocation scheme, which can support intra-PON traffic
redirection and intertraffic bandwidth allocation. Simulation results have shown that our proposed
architecture can improve the overall QoS in terms of end-to-end delay, jitter, system throughput,
fairness, and packet dropping rate.
© 2012 IEEE
PDF Article
More Like This
Cited By
Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.