# Opportunistic Error Correction for MIMO

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

### Abstract

In this paper, we propose an energy-efficient scheme to reduce the power consumption of ADCs in MIMO-OFDM systems. The proposed opportunistic error correction scheme is based on resolution adaptive ADCs and fountain codes. The key idea is to transmit a fountain-encoded packet over one single sub-carrier per antenna and to transmit more packets than needed for decoding. Comparing to the IEEE 802.11n standard, this approach allows around 83\% of power saving in ADCs for a $2\times2$ system and 90\% for a $4\times4$ system. With the current FEC scheme defined in the IEEE 802.11n standard, a $4\times4$ system requires twice amount of power in ADCs as a $2\times2$ system when receiving the same amount of information with the same power. However, using opportunistic error correction in a $4\times4$ system costs only around 1.4 times amount of energy in ADCs comparing to a $2\times2$ system.
Original language English The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09) Los Alamitos IEEE Computer Society Press 1757-1761 5 978-1-4244-5123-4 https://doi.org/10.1109/PIMRC.2009.5449870 Published - Sep 2009 20th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2009 - Tokyo, JapanDuration: 13 Sep 2009 → 16 Sep 2009Conference number: 20

### Publication series

Name IEEE Computer Society Press

### Conference

Conference 20th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2009 PIMRC Japan Tokyo 13/09/09 → 16/09/09

### Fingerprint

Fountains
Error correction
MIMO systems
Orthogonal frequency division multiplexing
Decoding
Antennas
Costs

### Keywords

• METIS-266513
• EWI-17158
• IR-71165

### Cite this

Shao, X., & Slump, C. H. (2009). Opportunistic Error Correction for MIMO. In The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09) (pp. 1757-1761). Los Alamitos: IEEE Computer Society Press. https://doi.org/10.1109/PIMRC.2009.5449870
Shao, X. ; Slump, Cornelis H. / Opportunistic Error Correction for MIMO. The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09). Los Alamitos : IEEE Computer Society Press, 2009. pp. 1757-1761
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title = "Opportunistic Error Correction for MIMO",
abstract = "In this paper, we propose an energy-efficient scheme to reduce the power consumption of ADCs in MIMO-OFDM systems. The proposed opportunistic error correction scheme is based on resolution adaptive ADCs and fountain codes. The key idea is to transmit a fountain-encoded packet over one single sub-carrier per antenna and to transmit more packets than needed for decoding. Comparing to the IEEE 802.11n standard, this approach allows around 83\{\%} of power saving in ADCs for a $2\times2$ system and 90\{\%} for a $4\times4$ system. With the current FEC scheme defined in the IEEE 802.11n standard, a $4\times4$ system requires twice amount of power in ADCs as a $2\times2$ system when receiving the same amount of information with the same power. However, using opportunistic error correction in a $4\times4$ system costs only around 1.4 times amount of energy in ADCs comparing to a $2\times2$ system.",
keywords = "METIS-266513, EWI-17158, IR-71165",
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language = "English",
isbn = "978-1-4244-5123-4",
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pages = "1757--1761",
booktitle = "The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09)",

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Shao, X & Slump, CH 2009, Opportunistic Error Correction for MIMO. in The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09). IEEE Computer Society Press, Los Alamitos, pp. 1757-1761, 20th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2009, Tokyo, Japan, 13/09/09. https://doi.org/10.1109/PIMRC.2009.5449870
The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09). Los Alamitos : IEEE Computer Society Press, 2009. p. 1757-1761.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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T1 - Opportunistic Error Correction for MIMO

AU - Shao, X.

AU - Slump, Cornelis H.

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N2 - In this paper, we propose an energy-efficient scheme to reduce the power consumption of ADCs in MIMO-OFDM systems. The proposed opportunistic error correction scheme is based on resolution adaptive ADCs and fountain codes. The key idea is to transmit a fountain-encoded packet over one single sub-carrier per antenna and to transmit more packets than needed for decoding. Comparing to the IEEE 802.11n standard, this approach allows around 83\% of power saving in ADCs for a $2\times2$ system and 90\% for a $4\times4$ system. With the current FEC scheme defined in the IEEE 802.11n standard, a $4\times4$ system requires twice amount of power in ADCs as a $2\times2$ system when receiving the same amount of information with the same power. However, using opportunistic error correction in a $4\times4$ system costs only around 1.4 times amount of energy in ADCs comparing to a $2\times2$ system.

AB - In this paper, we propose an energy-efficient scheme to reduce the power consumption of ADCs in MIMO-OFDM systems. The proposed opportunistic error correction scheme is based on resolution adaptive ADCs and fountain codes. The key idea is to transmit a fountain-encoded packet over one single sub-carrier per antenna and to transmit more packets than needed for decoding. Comparing to the IEEE 802.11n standard, this approach allows around 83\% of power saving in ADCs for a $2\times2$ system and 90\% for a $4\times4$ system. With the current FEC scheme defined in the IEEE 802.11n standard, a $4\times4$ system requires twice amount of power in ADCs as a $2\times2$ system when receiving the same amount of information with the same power. However, using opportunistic error correction in a $4\times4$ system costs only around 1.4 times amount of energy in ADCs comparing to a $2\times2$ system.

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Shao X, Slump CH. Opportunistic Error Correction for MIMO. In The 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09). Los Alamitos: IEEE Computer Society Press. 2009. p. 1757-1761 https://doi.org/10.1109/PIMRC.2009.5449870