Cooperative Caching in Space Information Networks

Members of a Low Earth Orbit (LEO) satellite group need to coordinate their activities in order to improve the quality and timeliness of the services provided to terrestrial clients. As a report from a work in progress, we explore different coordination patterns on a distributed cache and study the hit rate, the training ratio and the space requirements. The query model employs a Scale Free Distribution as this is proven to more accurately model the request patterns to many Internet services.