Bassa: a time shifted web caching system for developing regions

This paper presents a time shifted web caching system named Bassa. It is capable of scheduling, fetching and caching of web objects larger than a given size threshold to take place within the off peak time of the network. We have achieved promising results using this system by maximizing the use of available bandwidth for more interactive web objects during peak hours while utilizing previously underutilized band-width in off peak hours. By empirically analyzing the effect of time shifted caching on users we have unearthed that such systems encourage them to download larger files more than they did previously while accessing websites with more multimedia content such as falsh videos during the peak hours. In this paper we present those findings empirically based on data gathered from proxy server logs at University of Colombo School of Computing.