Article,

Fast Distribution of Replicated Content to Multi- Homed Clients

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ACEEE International Journal of Information Technology, 3 (2): 7 (June 2013)

Abstract

Clients can potentially have access to more than one communication network nowadays due to the availability of a wide variety of access technologies. On the other hand, service replication has become a trivial approach in overlay networks to provide a high availability of data and better QoS. In this paper, we consider such a multi-homed client seeking a replicated service in overlay network (e.g., CDN, peer-topeer). Our aim is to improve the content distribution by proposing a new model for being applied at the applicationlevel and in a fully distributed way. Basically, our model proposes to determine the best mirror server that could be reached through each client’s network interface based on application utility function. Then, it consists of downloading the requested content from the determined best servers simultaneously through their associated interfaces. Each best server should deliver a specific estimated range of bytes (i.e., content chunk) to an independent TCP socket opened at the client side for being finally aggregated at the applicationlevel. Our real experiments show that our model is able to considerably improve the QoS (e.g., content transfer time) perceived by the client comparing to the traditional content distribution techniques.

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