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On Transform Domain Communication Systems under Spectrum Sensing Mismatch: A Deterministic Analysis.

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This summary is machine-generated.

Transform-domain communication systems (TDCS) offer a solution for mobile internet and IoT data traffic. This study analyzes TDCS performance considering spectrum sensing mismatch (SSM), finding it degrades signal-to-noise ratio (SNR) and bit error rate (BER).

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cyclic code shift keyinginternet of thingsspectrum sensing mismatchtransform domain communication systems

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Area of Science:

  • Wireless communication
  • Signal processing
  • Information theory

Background:

  • The proliferation of mobile internet and the Internet of Things (IoT) necessitates advanced wireless communication technologies to handle massive data traffic and multiple access challenges.
  • Traditional wireless systems face spectrum scarcity and limitations in supporting the growing number of interconnected devices.
  • Transform-Domain Communication Systems (TDCS) have emerged as a promising alternative for 5G and mobile IoT, but prior research often overlooks spectrum sensing imperfections.

Purpose of the Study:

  • To deterministically analyze the performance of TDCS under arbitrary spectrum sensing scenarios.
  • To investigate the specific impact of spectrum sensing mismatch (SSM) patterns on the signal-to-noise ratio (SNR) of TDCS.
  • To evaluate the bit error rate (BER) performance of TDCS in the presence of SSM.

Main Methods:

  • Deterministic analysis of TDCS under various spectrum sensing conditions.
  • Mathematical modeling to assess the influence of SSM on SNR.
  • Simulations to validate theoretical findings and quantify BER performance degradation.

Main Results:

  • Spectrum sensing mismatch (SSM) significantly impacts TDCS performance.
  • Arbitrary SSM patterns lead to a degradation in signal-to-noise ratio (SNR).
  • The bit error rate (BER) performance of TDCS is shown to be inferior when SSM is present.

Conclusions:

  • The assumption of perfect spectrum information in previous TDCS studies is a limitation.
  • Spectrum sensing mismatch is a critical factor affecting TDCS reliability and efficiency.
  • Future TDCS designs must account for SSM to ensure robust performance in real-world IoT and 5G applications.