Analytical evaluation of clients' failures in a LVoD architecture based on P2P and multicast paradigms

Abstract

Peer-to-peer (P2P), multicast or hybrid paradigms are used nowadays as the main strategies in order to improve performance and scalability of Large Video on Demand (LVoD) systems. Using P2P and multicast supposes facing situations like how often peers connect and disconnect from the system or reconfiguration of multicast delivery trees. Therefore, such distributed designs require a complex control mechanism that can involve huge volume of network messages as well as computational requirements. Nevertheless, the control schemes are neglected in the LVoD design, which is rather focused on the application level logic for video data transmission. In this paper we analyze extensively, by mean of analytical models, the requirement of the control subsystem of a P2P multicast architecture named PCM/MCDB. In our analysis, we consider different designs schemes and the results show an increasing importance of the control module in the LVoD infrastructure. © 2008 Springer-Verlag Berlin Heidelberg.