Enhancing Successful Data Delivery in Small Satellite Networks

JORGE M. FINOCHIETTO; PABLO G. MADOERY; JUAN A. FRAIRE; FERNANDO D. RAVERTA

Buenos Aires

Simposio; 1st IAA Latin American Symposium on Small Satellites; 2017

Small Satellite Networks (SSN) are attracting lot of attention from government agencies as well as companies as they aim at supporting both legacy and new applications based on a pay as you grow model. Since these networks may need to deliver huge amountsof data, some redundancy is required to maximize its success. In this paper, we investigate the data delivery performance of a SSN flying in a linear formation. For this purpose, we consider N small satellites in a train-like configuration continuously connected by intersatellite links (ISLs). Also, the constellation communicates with a ground station via sporadic Earth to satellite links (ESLs). Under this configuration, we address the problem of delivering data from any flying node to ground. Based on the redundancy algebra and factorization theorem, we propose and evaluate three different routing schemes in terms of average successful delivery probability, resource consumption, and data replication.