Performance Analysis of Distributed Radio Telescopes under Shared Spectrum Access Paradigm

@article{Han2017PerformanceAO,
  title={Performance Analysis of Distributed Radio Telescopes under Shared Spectrum Access Paradigm},
  author={Dong-Wan Han and Hlaing Minn},
  journal={GLOBECOM 2017 - 2017 IEEE Global Communications Conference},
  year={2017},
  pages={1-6}
}
  • Dong-Wan Han, H. Minn
  • Published 1 December 2017
  • Physics
  • GLOBECOM 2017 - 2017 IEEE Global Communications Conference
For sustainable growth and coexistence of cellular wireless communications (CWC) and radio astronomy system (RAS), a coordinated shared spectrum access paradigm was recently introduced. Embracing such paradigm, this paper proposes a distributed radio telescope (DRT) system which can geographically and spectrally coexist with CWC while offering additional capability or performance enhancement to RAS. Theoretical performance analysis of the DRT system with different quantization resolutions is… 
View on IEEE
utdallas.edu
3 Citations
Background Citations
2

Figures and Tables from this paper

3 Citations

Citation Type

Citation Type

Performance Analysis of Distributed Auxiliary Radio Telescopes Under Shared Spectrum Access Paradigm and Cooling Power Constraint
TLDR
An analytical expression for the Dart system parameters under the shared spectrum access paradigm and cooling power constraint to achieve the same performance as the existing single-dish RAS with a radio quiet zone is developed to provide guidance in the DART system design.
A New Paradigm for Non-Geostationary Satellite Communications and Radio Astronomy System
TLDR
This paper proposes a new paradigm to accommodate the rapid growth of non-geostationary orbit (NGSO) satellite communications system (SCS) and radio astronomy system (RAS) and addresses two related problems of the new paradigm, namely the spectrum resource allocation problem and the RAS data transport problem.
Impacts of Large-Scale NGSO Satellites: RFI and A New Paradigm for Satellite Communications and Radio Astronomy Systems
TLDR
A new paradigm where SCS and RAS are integrated into the NGSO satellite system is proposed, thus effectively creating large-scale telescopes in orbit and illustrating the advantages of the proposed paradigm in terms of accessible spectrum bands, RAS observation performance, and SCS maximum mean supportable data rate as well as enabling coexistence and growths of both types of services.

References

SHOWING 1-10 OF 18 REFERENCES
A New Shared Spectrum Access Paradigm between Cellular Wireless Communications and Radio Astronomy
TLDR
A three phase spectrum access which enables geographical and spectral coexistence between CWC and RAS is developed and a built-in fine tuning mechanism is presented for addressing mismatches between design and practical environments as well as for facilitating service evolutions.
A New Paradigm for Spectrum Sharing Between Cellular Wireless Communications and Radio Astronomy Systems
TLDR
Performance evaluation results demonstrate that the proposed paradigm offers certain guaranteed spectrum access to RAS, capability to handle higher peak and mean traffics to CWC under spectrum restructuring of both CWC and RAS bands, and overall improved spectrum utilization.
Full duplex cognitive radio: a new design paradigm for enhancing spectrum usage
TLDR
A new design paradigm for future CR is presented by exploring full duplex techniques to achieve simultaneous spectrum sensing and data transmission by integrating FD radios equipped at secondary users (SUs), and thus significantly improve sensing performance while increasing data transmission efficiency.
Spectrum sharing between WiFi and radio astronomy
TLDR
The proposed approach creates a coexistence access zone (CAZ) around the RAS site within which WiFi and RAS follow a pre-determined time-division spectrum access, demonstrating substantial RFI-free spectrum access which were infeasible in the existing paradigm.
Statistical performance of reference antenna based spatial RFI mitigation for radio astronomy
Radio Frequency Interference is an important challenge for radio astronomy. Interference mitigation can be applied in the time, frequency and spatial domains. The spatial approach is particularly of…
Spatial Filtering of RF Interference in Radio Astronomy Using a Reference Antenna Array
TLDR
This paper considers extending the astronomical array with a reference antenna array, and develops spatial filtering algorithms for this situation, where the information from the reference antennas improves the quality of the interferer signature vector estimation, hence more of the interference can be projected out.
Auxiliary antenna-assisted interference mitigation for radio astronomy arrays
TLDR
This paper will show that using a few low-gain "auxiliary" antennas to an existing array can significantly improve interference rejection and new extensions to subspace projection spatial filtering methods are presented, along with analytical and simulated results for performance comparison.
Dynamic Spectrum Management: Complexity and Duality
  • Z. Luo, Shuzhong Zhang
  • Computer Science, Mathematics
    IEEE Journal of Selected Topics in Signal Processing
  • 2008
TLDR
Using the Lyapunov theorem in functional analysis, this work rigorously proves a result first discovered by Yu and Lui (2006) that there is a zero duality gap for the continuous (Lebesgue integral) formulation of the discretized version of this nonconvex problem.
Radio quiet, please! – protecting radio astronomy from interference
  • W. Driel
  • Physics
    Proceedings of the International Astronomical Union
  • 2009
TLDR
The aim of spectrum management includes setting regulatory limits on RFI levels emitted by other spectrum users into the radio astronomy frequency bands, which involves discussions with regulatory bodies and other Spectrum users at several levels – national, regional and worldwide.
Spectrum Management for Science in the 21st Century
The U.S. National Research Council’s Committee on Radio Frequencies (CORF) has just finished overseeing the completion of “Spectrum Management for Science in the 21st Century,” a report aimed at…
...
1
2
...