Low complexity multi-point 4-channel FFT processor for IEEE 802.11n MIMO-OFDM WLAN system

Byungcheol Kang, Jaeseok Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

This paper proposes an energy and area efficient structure and hardware architecture of FFT processor for 4×4 MIMO-OFDM WLAN systems with four transmit and four receive antennas. Since the basic scheme of MIMO-OFDM system is multiple data transmission, conventional FFT processor for SISO-OFDM system is not suitable for MIMO-OFDM systems. The proposed FFT processor has multi-channel structure to support multiple data path. Multi-channel structure enables to processor several FFT operation with just single processor. Also, by the mixed radix algorithm, the number of non-trivial multiplications of the FFT processor is decreased. The proposed FFT processor reduces the logic gates about 25% over a 4-channel R4MDC FFT processor. Therefore, the proposed FFT processor will contribute improvement to the low power and low complexity design of MIMO-OFDM systems, since the MIMO-OFDM FFT processor is one of the largest modules in the systems, in which the low complexity design is a very important issue.

Original languageEnglish
Title of host publicationProceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012
Pages94-97
Number of pages4
DOIs
Publication statusPublished - 2012 Dec 12
Event2012 International Conference in Green and Ubiquitous Technology, GUT 2012 - Bandung, Indonesia
Duration: 2012 Jul 72012 Jul 8

Publication series

NameProceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012

Other

Other2012 International Conference in Green and Ubiquitous Technology, GUT 2012
CountryIndonesia
CityBandung
Period12/7/712/7/8

Fingerprint

Wireless local area networks (WLAN)
MIMO systems
Fast Fourier transforms
Orthogonal frequency division multiplexing
Logic gates
Data communication systems
Antennas
Hardware

All Science Journal Classification (ASJC) codes

  • Software

Cite this

Kang, B., & Kim, J. (2012). Low complexity multi-point 4-channel FFT processor for IEEE 802.11n MIMO-OFDM WLAN system. In Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012 (pp. 94-97). [6344198] (Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012). https://doi.org/10.1109/GUT.2012.6344198
Kang, Byungcheol ; Kim, Jaeseok. / Low complexity multi-point 4-channel FFT processor for IEEE 802.11n MIMO-OFDM WLAN system. Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012. 2012. pp. 94-97 (Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012).
@inproceedings{fa36023d794a43c6aa05c748d657dfc9,
title = "Low complexity multi-point 4-channel FFT processor for IEEE 802.11n MIMO-OFDM WLAN system",
abstract = "This paper proposes an energy and area efficient structure and hardware architecture of FFT processor for 4×4 MIMO-OFDM WLAN systems with four transmit and four receive antennas. Since the basic scheme of MIMO-OFDM system is multiple data transmission, conventional FFT processor for SISO-OFDM system is not suitable for MIMO-OFDM systems. The proposed FFT processor has multi-channel structure to support multiple data path. Multi-channel structure enables to processor several FFT operation with just single processor. Also, by the mixed radix algorithm, the number of non-trivial multiplications of the FFT processor is decreased. The proposed FFT processor reduces the logic gates about 25{\%} over a 4-channel R4MDC FFT processor. Therefore, the proposed FFT processor will contribute improvement to the low power and low complexity design of MIMO-OFDM systems, since the MIMO-OFDM FFT processor is one of the largest modules in the systems, in which the low complexity design is a very important issue.",
author = "Byungcheol Kang and Jaeseok Kim",
year = "2012",
month = "12",
day = "12",
doi = "10.1109/GUT.2012.6344198",
language = "English",
isbn = "9781457721724",
series = "Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012",
pages = "94--97",
booktitle = "Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012",

}

Kang, B & Kim, J 2012, Low complexity multi-point 4-channel FFT processor for IEEE 802.11n MIMO-OFDM WLAN system. in Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012., 6344198, Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012, pp. 94-97, 2012 International Conference in Green and Ubiquitous Technology, GUT 2012, Bandung, Indonesia, 12/7/7. https://doi.org/10.1109/GUT.2012.6344198

Low complexity multi-point 4-channel FFT processor for IEEE 802.11n MIMO-OFDM WLAN system. / Kang, Byungcheol; Kim, Jaeseok.

Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012. 2012. p. 94-97 6344198 (Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Low complexity multi-point 4-channel FFT processor for IEEE 802.11n MIMO-OFDM WLAN system

AU - Kang, Byungcheol

AU - Kim, Jaeseok

PY - 2012/12/12

Y1 - 2012/12/12

N2 - This paper proposes an energy and area efficient structure and hardware architecture of FFT processor for 4×4 MIMO-OFDM WLAN systems with four transmit and four receive antennas. Since the basic scheme of MIMO-OFDM system is multiple data transmission, conventional FFT processor for SISO-OFDM system is not suitable for MIMO-OFDM systems. The proposed FFT processor has multi-channel structure to support multiple data path. Multi-channel structure enables to processor several FFT operation with just single processor. Also, by the mixed radix algorithm, the number of non-trivial multiplications of the FFT processor is decreased. The proposed FFT processor reduces the logic gates about 25% over a 4-channel R4MDC FFT processor. Therefore, the proposed FFT processor will contribute improvement to the low power and low complexity design of MIMO-OFDM systems, since the MIMO-OFDM FFT processor is one of the largest modules in the systems, in which the low complexity design is a very important issue.

AB - This paper proposes an energy and area efficient structure and hardware architecture of FFT processor for 4×4 MIMO-OFDM WLAN systems with four transmit and four receive antennas. Since the basic scheme of MIMO-OFDM system is multiple data transmission, conventional FFT processor for SISO-OFDM system is not suitable for MIMO-OFDM systems. The proposed FFT processor has multi-channel structure to support multiple data path. Multi-channel structure enables to processor several FFT operation with just single processor. Also, by the mixed radix algorithm, the number of non-trivial multiplications of the FFT processor is decreased. The proposed FFT processor reduces the logic gates about 25% over a 4-channel R4MDC FFT processor. Therefore, the proposed FFT processor will contribute improvement to the low power and low complexity design of MIMO-OFDM systems, since the MIMO-OFDM FFT processor is one of the largest modules in the systems, in which the low complexity design is a very important issue.

UR - http://www.scopus.com/inward/record.url?scp=84870724534&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870724534&partnerID=8YFLogxK

U2 - 10.1109/GUT.2012.6344198

DO - 10.1109/GUT.2012.6344198

M3 - Conference contribution

AN - SCOPUS:84870724534

SN - 9781457721724

T3 - Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012

SP - 94

EP - 97

BT - Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012

ER -

Kang B, Kim J. Low complexity multi-point 4-channel FFT processor for IEEE 802.11n MIMO-OFDM WLAN system. In Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012. 2012. p. 94-97. 6344198. (Proceedings of the 2012 International Conference in Green and Ubiquitous Technology, GUT 2012). https://doi.org/10.1109/GUT.2012.6344198