Contact Plan Design for Predictable Disruption Tolerant Space Sensor Networks

JORGE M FINOCHIETTO; JUAN FRAIRE; PABLO MADOERY

Wireless Sensor Systems for Extreme Environments: Space, Underwater, Underground and Industrial

Wiley

Año: 2017; p. 123 - 150

11Contact Plan Design for Predictable Disruption TolerantSpace Sensor NetworksJ. Fraire, P. Madoery, J. Finochietto1.1IntroductionToday, optical and radar images of our planet from orbit are acquired continuous-ly since they have become powerful scientific tools to enable better understandingand improved management of the Earth and its environment. Traditionally, a singlespace-based satellite sensor gathers data from sites across the world, including placestoo remote or otherwise inaccessible for ground-based data acquisition. This makesEarth observation from space an effective means of providing coverage across bothspace and time. Therefore, an orbiting network of spatially distributed autonomouswireless sensors (Space Sensor Network or SSN [1]) could open new possibilitiesfor unprecedented applications by significantly extending coverage in both dimen-sions. To achieve this, the nodes would need to rely on efficient protocols and algo-rithms to cooperatively pass sensed data through the network to the final destinationin ground [2]