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Design and Implementation of a Power-aware FFT Core for OFDM-based DSA-enabled Cognitive Radios

Tutkimustuotosvertaisarvioitu

Standard

Design and Implementation of a Power-aware FFT Core for OFDM-based DSA-enabled Cognitive Radios. / Airoldi, Roberto; Campi, Fabio; Cucchi, Manuele; Revanna, Deepak; Anjum, Omer; Nurmi, Jari.

julkaisussa: Journal of Signal Processing Systems, Vuosikerta 78, Nro 3, 2015, s. 257-265.

Tutkimustuotosvertaisarvioitu

Harvard

Airoldi, R, Campi, F, Cucchi, M, Revanna, D, Anjum, O & Nurmi, J 2015, 'Design and Implementation of a Power-aware FFT Core for OFDM-based DSA-enabled Cognitive Radios', Journal of Signal Processing Systems, Vuosikerta. 78, Nro 3, Sivut 257-265. https://doi.org/10.1007/s11265-014-0894-z

APA

Airoldi, R., Campi, F., Cucchi, M., Revanna, D., Anjum, O., & Nurmi, J. (2015). Design and Implementation of a Power-aware FFT Core for OFDM-based DSA-enabled Cognitive Radios. Journal of Signal Processing Systems, 78(3), 257-265. https://doi.org/10.1007/s11265-014-0894-z

Vancouver

Airoldi R, Campi F, Cucchi M, Revanna D, Anjum O, Nurmi J. Design and Implementation of a Power-aware FFT Core for OFDM-based DSA-enabled Cognitive Radios. Journal of Signal Processing Systems. 2015;78(3):257-265. https://doi.org/10.1007/s11265-014-0894-z

Author

Airoldi, Roberto ; Campi, Fabio ; Cucchi, Manuele ; Revanna, Deepak ; Anjum, Omer ; Nurmi, Jari. / Design and Implementation of a Power-aware FFT Core for OFDM-based DSA-enabled Cognitive Radios. Julkaisussa: Journal of Signal Processing Systems. 2015 ; Vuosikerta 78, Nro 3. Sivut 257-265.

Bibtex - Lataa

@article{42be362c7fbd4220a2d1efcd6ca6534f,
title = "Design and Implementation of a Power-aware FFT Core for OFDM-based DSA-enabled Cognitive Radios",
abstract = "This research work presents the design and the physical implementation of a power aware FFT core for OFDM-based, dynamic spectrum access (DSA) enabled cognitive radios. The FFT core is equipped with a pruning engine that allows the run-time removal of dummy operations (e.g. multiplications by a zero term) related to the pruning of sub-carriers of the communication systems. The pruning algorithm introduced by this research work utilizes a reduced size configuration matrix, which limits the memory requirements' overhead. Finally, the physical implementation of the FFT on a 45 nm technology node showed that, for a 8 {\%} area overhead, the total power saving settles around 10 {\%} when in the presence of a medium to high pruning level, justifying the silicon area overhead introduced by the pruning unit.",
keywords = "Cognitive radios, Dynamic spectrum access, OFDM, FFT pruning, Low power design, WIRELESS ACCESS, ALGORITHM, TECHNOLOGY, SYSTEMS",
author = "Roberto Airoldi and Fabio Campi and Manuele Cucchi and Deepak Revanna and Omer Anjum and Jari Nurmi",
note = "Contribution: organisation=elt,FACT1=1<br/>Portfolio EDEND: 2014-06-03<br/>Publisher name: Springer New York",
year = "2015",
doi = "10.1007/s11265-014-0894-z",
language = "English",
volume = "78",
pages = "257--265",
journal = "Journal of Signal Processing Systems",
issn = "1939-8018",
publisher = "Springer Verlag",
number = "3",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Design and Implementation of a Power-aware FFT Core for OFDM-based DSA-enabled Cognitive Radios

AU - Airoldi, Roberto

AU - Campi, Fabio

AU - Cucchi, Manuele

AU - Revanna, Deepak

AU - Anjum, Omer

AU - Nurmi, Jari

N1 - Contribution: organisation=elt,FACT1=1<br/>Portfolio EDEND: 2014-06-03<br/>Publisher name: Springer New York

PY - 2015

Y1 - 2015

N2 - This research work presents the design and the physical implementation of a power aware FFT core for OFDM-based, dynamic spectrum access (DSA) enabled cognitive radios. The FFT core is equipped with a pruning engine that allows the run-time removal of dummy operations (e.g. multiplications by a zero term) related to the pruning of sub-carriers of the communication systems. The pruning algorithm introduced by this research work utilizes a reduced size configuration matrix, which limits the memory requirements' overhead. Finally, the physical implementation of the FFT on a 45 nm technology node showed that, for a 8 % area overhead, the total power saving settles around 10 % when in the presence of a medium to high pruning level, justifying the silicon area overhead introduced by the pruning unit.

AB - This research work presents the design and the physical implementation of a power aware FFT core for OFDM-based, dynamic spectrum access (DSA) enabled cognitive radios. The FFT core is equipped with a pruning engine that allows the run-time removal of dummy operations (e.g. multiplications by a zero term) related to the pruning of sub-carriers of the communication systems. The pruning algorithm introduced by this research work utilizes a reduced size configuration matrix, which limits the memory requirements' overhead. Finally, the physical implementation of the FFT on a 45 nm technology node showed that, for a 8 % area overhead, the total power saving settles around 10 % when in the presence of a medium to high pruning level, justifying the silicon area overhead introduced by the pruning unit.

KW - Cognitive radios

KW - Dynamic spectrum access

KW - OFDM

KW - FFT pruning

KW - Low power design

KW - WIRELESS ACCESS

KW - ALGORITHM

KW - TECHNOLOGY

KW - SYSTEMS

U2 - 10.1007/s11265-014-0894-z

DO - 10.1007/s11265-014-0894-z

M3 - Article

VL - 78

SP - 257

EP - 265

JO - Journal of Signal Processing Systems

JF - Journal of Signal Processing Systems

SN - 1939-8018

IS - 3

ER -