Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems

Chih Feng Wu; Chun Hung Chen; Muh Tian Shiue

doi:10.1109/IS3C.2016.66

Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems

Chih Feng Wu, Chun Hung Chen, Muh Tian Shiue

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

In this paper, a decision-directed beamforming and channelequalization algorithm is presented for IEEE 802.11n OFDM systems in the presence of co-channel interference (CCI). Based on the minimum mean-square error (MMSE) criterion, the cost function of the proposed algorithm is to minimize the MSE on each subchannel and to improve the system performance. The beamforming compensation isprimarily used to suppress CCI. The channel equalization is employed to combat the baseband equivalent channel variations induced by multipath fading channel and adaptation of beamformer. The simulations are done for the multipath frequency-selective fadingchannel with CCI to demonstrate that the proposed algorithm can effectively eliminate CCI and compensate the channel distortions. Finally, an FEQ design is done by FPGA evaluation.

Original language	English
Title of host publication	Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	220-223
Number of pages	4
ISBN (Electronic)	9781509030712
DOIs	https://doi.org/10.1109/IS3C.2016.66
State	Published - 16 08 2016
Externally published	Yes
Event	2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016 - Xi'an, China Duration: 04 07 2016 → 06 07 2016

Publication series

Name	Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016

Conference

Conference	2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016
Country/Territory	China
City	Xi'an
Period	04/07/16 → 06/07/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Keywords

Beamforming
Channel Equalizaiton
FPGA
OFDM

Access to Document

10.1109/IS3C.2016.66

Cite this

Wu, C. F., Chen, C. H., & Shiue, M. T. (2016). Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems. In Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016 (pp. 220-223). Article 7545176 (Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IS3C.2016.66

Wu, Chih Feng ; Chen, Chun Hung ; Shiue, Muh Tian. / Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems. Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 220-223 (Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016).

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title = "Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems",

abstract = "In this paper, a decision-directed beamforming and channelequalization algorithm is presented for IEEE 802.11n OFDM systems in the presence of co-channel interference (CCI). Based on the minimum mean-square error (MMSE) criterion, the cost function of the proposed algorithm is to minimize the MSE on each subchannel and to improve the system performance. The beamforming compensation isprimarily used to suppress CCI. The channel equalization is employed to combat the baseband equivalent channel variations induced by multipath fading channel and adaptation of beamformer. The simulations are done for the multipath frequency-selective fadingchannel with CCI to demonstrate that the proposed algorithm can effectively eliminate CCI and compensate the channel distortions. Finally, an FEQ design is done by FPGA evaluation.",

keywords = "Beamforming, Channel Equalizaiton, FPGA, OFDM",

author = "Wu, {Chih Feng} and Chen, {Chun Hung} and Shiue, {Muh Tian}",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016 ; Conference date: 04-07-2016 Through 06-07-2016",

year = "2016",

month = aug,

day = "16",

doi = "10.1109/IS3C.2016.66",

language = "英语",

series = "Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Wu, CF, Chen, CH & Shiue, MT 2016, Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems. in Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016., 7545176, Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016, Institute of Electrical and Electronics Engineers Inc., pp. 220-223, 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016, Xi'an, China, 04/07/16. https://doi.org/10.1109/IS3C.2016.66

Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems. / Wu, Chih Feng; Chen, Chun Hung; Shiue, Muh Tian.
Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 220-223 7545176 (Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Wu, Chih Feng

AU - Chen, Chun Hung

AU - Shiue, Muh Tian

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N2 - In this paper, a decision-directed beamforming and channelequalization algorithm is presented for IEEE 802.11n OFDM systems in the presence of co-channel interference (CCI). Based on the minimum mean-square error (MMSE) criterion, the cost function of the proposed algorithm is to minimize the MSE on each subchannel and to improve the system performance. The beamforming compensation isprimarily used to suppress CCI. The channel equalization is employed to combat the baseband equivalent channel variations induced by multipath fading channel and adaptation of beamformer. The simulations are done for the multipath frequency-selective fadingchannel with CCI to demonstrate that the proposed algorithm can effectively eliminate CCI and compensate the channel distortions. Finally, an FEQ design is done by FPGA evaluation.

AB - In this paper, a decision-directed beamforming and channelequalization algorithm is presented for IEEE 802.11n OFDM systems in the presence of co-channel interference (CCI). Based on the minimum mean-square error (MMSE) criterion, the cost function of the proposed algorithm is to minimize the MSE on each subchannel and to improve the system performance. The beamforming compensation isprimarily used to suppress CCI. The channel equalization is employed to combat the baseband equivalent channel variations induced by multipath fading channel and adaptation of beamformer. The simulations are done for the multipath frequency-selective fadingchannel with CCI to demonstrate that the proposed algorithm can effectively eliminate CCI and compensate the channel distortions. Finally, an FEQ design is done by FPGA evaluation.

KW - Beamforming

KW - Channel Equalizaiton

KW - FPGA

KW - OFDM

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Wu CF, Chen CH, Shiue MT. Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems. In Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 220-223. 7545176. (Proceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016). doi: 10.1109/IS3C.2016.66

Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems

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