Improved OFDM Signal Cancellation through Window Estimation Article Swipe
Daniel Chew
,
Samuel Berhanu
,
C.W. Baumgart
,
A. Brinton Cooper
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2303.12472
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2303.12472
The ability to cancel an OFDM signal is important to many wireless communication systems including Power-Domain Non-orthogonal Multiple Access (PD-NOMA), Rate-Splitting Multiple Access (RSMA), and spectrum underlay for dynamic spectrum access. In this paper, we show that estimating the windowing applied at the transmitter is important to that cancellation. Windowing at the transmitter is a popular means to control the bandwidth of an Orthogonal Frequency Division Multiplexed (OFDM) symbol and is overlooked in most literature on OFDM signal cancellation. We show the limitation to the amount of cancellation that can be achieved without knowledge of OFDM windowing. We show that the window can be estimated from received samples alone, and that window estimate can be used to improve the signal cancellation. The window is estimated in the presence of noise and imperfect estimates of the center frequency offset (CFO) and the channel. We conclude with results using synthetic and over-the-air data where we demonstrate a 5.3 dB improvement to OFDM signal cancellation over existing methods in an over-the-air experiment.
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Metadata
- Type
- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2303.12472
- https://arxiv.org/pdf/2303.12472
- OA Status
- green
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4360834300
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4360834300Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.48550/arxiv.2303.12472Digital Object Identifier
- Title
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Improved OFDM Signal Cancellation through Window EstimationWork title
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preprintOpenAlex work type
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enPrimary language
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2023Year of publication
- Publication date
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2023-03-22Full publication date if available
- Authors
-
Daniel Chew, Samuel Berhanu, C.W. Baumgart, A. Brinton CooperList of authors in order
- Landing page
-
https://arxiv.org/abs/2303.12472Publisher landing page
- PDF URL
-
https://arxiv.org/pdf/2303.12472Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
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https://arxiv.org/pdf/2303.12472Direct OA link when available
- Concepts
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Orthogonal frequency-division multiplexing, Transmitter, Computer science, Electronic engineering, Bandwidth (computing), Frequency offset, SIGNAL (programming language), Wireless, Telecommunications, Channel (broadcasting), Engineering, Programming languageTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
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10Other works algorithmically related by OpenAlex
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