Development of an ns-3 Based Network Simulator for Space Telemetry
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Date
2017
Authors
Khan, Md Monjurul Islam
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Abstract
A satellite communication module is developed to generate network variables, which are required to simulate the communication channel between a workstation on the Earth and the International Space Station (ISS). The main focus is to use this simulator to study the feasibility of transmitting data packet between a location on Earth and the ISS, an orbiting research laboratory, for different applications including teleoperation. Thus, a simulation platform is needed to mimic the actual communication scenario. Therefore, the performance of a remotely–controlled system could be examined using the developed satellite communication module, before final implementation in the field, which is time consuming and expensive. The Network Simulator 3 (ns-3) is employed to develop the satellite communication module. Values of network parameters, obtained from simulation using the developed module, are quantified when the ISS rotates around the Earth. To show the proof of concept, the simulator
is tested for a haptic-enabled teleoperated system. At the master site, the simulation program of a 3–degree–of–freedom (DOF) haptic device is used, and its position and force components are transferred to the slave site on the ISS. A packet data, containing the information of the master site, is transmitted through a simulated communication channel. Results validate that, the simulator is capable of transferring the data packet, as the force/position signal, received at the slave site followed the characteristics of the signal transmitted from the master station on earth.
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Keywords
Satellite Communication, Satellite orbital propagation, Network Simulator-3 OR ns-3, International Space Station, Communication between Earth and ISS, Space Telemetry, TDRSS, TCP performance over Satellite communication, TLE