An Analytical Framework for Resource-Limited Small Satellite Networks
Runzi Liu, Min Sheng, King‐Shan Lui, Xijun Wang, Yu Wang, Di Zhou · IEEE Communications Letters · 2015
In this letter, we propose an analytical framework for resource-limited small satellite networks. To handle the challenges raised by the intertwined impacts of energy budgets, satellites’ movements and delay requirements on data acquisition and delivery process, we extend the traditional time-expanded graph to model the data acquisition and energy managements. Based on this graph model, we formulate the data acquisition and delivery strategies into an optimization problem aiming at maximizing the delay-constrained throughput. Our framework allows us to investigate the impact of different factors on the network performance. Simulation results highlight the necessity of considering the constraints of energy budgets and delay requirements jointly in the design of data delivery strategies.