The ability to emulate the full space protocol stack is an essential aspect required to evaluate and mature cognitive communication capabilities. The interaction between the physical layer and network layers is key to developing network optimizations for a dynamic and complex environment. We present a laboratory testbed for the evaluation of cognitive radio and networking techniques applied to space communications. The testbed is a high fidelity, flight-like hardware testbed consisting of software-defined radios, channel emulators, modems, and orbital analysis and scheduling software. The testbed uses RF links with signal quality, propagation delay, and Doppler effects driven by orbital mechanics simulations of emulated spacecraft. Our framework enables control of link bidirectionality, data rates, and interference sources. In addition to hardware radio nodes, the testbed can incorporate virtualized emulated nodes for larger and more challenging network scenarios. Our approach to a cognitive communication system uses delay tolerant networking (DTN) to mitigate the challenges of the space environment. While many DTN networks use only preplanned schedules, our system uses User-Initiated Service (UIS) to dynamically schedule service providers. Software-defined radio allows the system to adapt to a variety of service providers. Integration of DTN, UIS, and software-defined radio technologies provides a framework for the implementation of a cognitive communication system. This paper describes the testbed capabilities, network emulation approach, component integration, and initial end-to-end testing results.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Emulated Spacecraft Communication Testbed for Evaluating Cognitive Networking Technology


    Contributors:


    Publication date :

    2023-06-20


    Size :

    4131996 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Spacecraft attitude testbed

    Stromecki, Michael / Bani Younes, Ahmad | Elsevier | 2024


    Spacecraft Attitude Testbed (SAT)

    Bani Younes, Ahmad | AIAA | 2020


    Modular Testbed for Spinning Spacecraft

    Chanik, Abadi | Online Contents | 2016


    Modular Testbed for Spinning Spacecraft

    Chanik, Abadi | Online Contents | 2017


    Modular Testbed for Spinning Spacecraft

    Chanik, Abadi / Gao, Yang / Si, Juntian | AIAA | 2016