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Effect of time-interleaved analog-to-digital converter mismatches on OFDM performance

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Abstract
For the extremely high sampling rate and high resolution required for multi-Gigabit orthogonal frequency division multiplexing (OFDM) communication systems, time-interleaved analog-to-digital converters (ADCs) are being considered. However, in practice, mismatches such as offset mismatch, gain mismatch and timing mismatch occur between the parallel sub-ADCs. This paper theoretically analyzes the impact of the different mismatches on the performance of the OFDM system. The theoretical results are confirmed by simulations and show that OFDM performance is strongly degraded, even for small mismatches.
Keywords
performance, OFDM, time-interleaved analog-to-digital converter, mismatch

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MLA
Huynh, Vo Trung Dung, Nele Noels, Pieter Rombouts, et al. “Effect of Time-interleaved Analog-to-digital Converter Mismatches on OFDM Performance.” 18th International OFDM Workshop 2014, Proceedings. Germany: VDE VERLAG GMBH, 2014. 128–135. Print.
APA
Huynh, V. T. D., Noels, N., Rombouts, P., Armstrong, J., & Steendam, H. (2014). Effect of time-interleaved analog-to-digital converter mismatches on OFDM performance. 18th International OFDM Workshop 2014, Proceedings (pp. 128–135). Presented at the 18th International OFDM Workshop 2014 (INOWO - 2014), Germany: VDE VERLAG GMBH.
Chicago author-date
Huynh, Vo Trung Dung, Nele Noels, Pieter Rombouts, Jean Armstrong, and Heidi Steendam. 2014. “Effect of Time-interleaved Analog-to-digital Converter Mismatches on OFDM Performance.” In 18th International OFDM Workshop 2014, Proceedings, 128–135. Germany: VDE VERLAG GMBH.
Chicago author-date (all authors)
Huynh, Vo Trung Dung, Nele Noels, Pieter Rombouts, Jean Armstrong, and Heidi Steendam. 2014. “Effect of Time-interleaved Analog-to-digital Converter Mismatches on OFDM Performance.” In 18th International OFDM Workshop 2014, Proceedings, 128–135. Germany: VDE VERLAG GMBH.
Vancouver
1.
Huynh VTD, Noels N, Rombouts P, Armstrong J, Steendam H. Effect of time-interleaved analog-to-digital converter mismatches on OFDM performance. 18th International OFDM Workshop 2014, Proceedings. Germany: VDE VERLAG GMBH; 2014. p. 128–35.
IEEE
[1]
V. T. D. Huynh, N. Noels, P. Rombouts, J. Armstrong, and H. Steendam, “Effect of time-interleaved analog-to-digital converter mismatches on OFDM performance,” in 18th International OFDM Workshop 2014, Proceedings, Essen, Germany, 2014, pp. 128–135.
@inproceedings{5725465,
  abstract     = {{For the extremely high sampling rate and high resolution required for multi-Gigabit orthogonal frequency division multiplexing (OFDM) communication systems, time-interleaved analog-to-digital converters (ADCs) are being considered. However, in practice, mismatches such as offset mismatch, gain mismatch and timing mismatch occur between the parallel sub-ADCs. This paper theoretically analyzes the impact of the different mismatches on the performance of the OFDM system. The theoretical results are confirmed by simulations and show that OFDM performance is strongly degraded, even for small mismatches.}},
  author       = {{Huynh, Vo Trung Dung and Noels, Nele and Rombouts, Pieter and Armstrong, Jean and Steendam, Heidi}},
  booktitle    = {{18th International OFDM Workshop 2014, Proceedings}},
  isbn         = {{9783800735891}},
  keywords     = {{performance,OFDM,time-interleaved analog-to-digital converter,mismatch}},
  language     = {{eng}},
  location     = {{Essen, Germany}},
  pages        = {{128--135}},
  publisher    = {{VDE VERLAG GMBH}},
  title        = {{Effect of time-interleaved analog-to-digital converter mismatches on OFDM performance}},
  year         = {{2014}},
}