Efficient frequency-domain channel equalisation methods for ofdm visible light communications

Bangjiang Lin; Xuan Tang; Zabih Ghassemlooy; Shihao Zhang; Yiwei Li; Yi Wu; Hui Li

doi:10.1049/iet-com.2016.0787

Efficient frequency-domain channel equalisation methods for ofdm visible light communications

Bangjiang Lin^*
, Xuan Tang
, Zabih Ghassemlooy
, Shihao Zhang
, Yiwei Li
, Yi Wu
, Hui Li

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The authors present efficient frequency-domain channel estimationmethods based on the intra-symbol frequencydomain averaging (ISFA), minimum mean squared error (MMSE) and weighted inter-frame averaging (WIFA) schemes for the orthogonal frequency division multiplexing (OFDM) visible light communications (VLC) system. OFDM-VLC with quadrature phase shift keying, 16- and 64-quadrature amplitude modulation mapping is experimentally demonstrated. Compared with the conventional least square channel estimation method, ISFA, MMSE and WIFA offer improved performance with MMSE offering the best performance in terms of the error vector magnitude but at the cost of high complexity. The authors show that the WIFA can improve the estimation accuracy of time-varying VLC optical channel.

Original language	English
Pages (from-to)	25-29
Number of pages	5
Journal	IET Communications
Volume	11
Issue number	1
DOIs	https://doi.org/10.1049/iet-com.2016.0787
State	Published - 5 Jan 2017
Externally published	Yes

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title = "Efficient frequency-domain channel equalisation methods for ofdm visible light communications",

abstract = "The authors present efficient frequency-domain channel estimationmethods based on the intra-symbol frequencydomain averaging (ISFA), minimum mean squared error (MMSE) and weighted inter-frame averaging (WIFA) schemes for the orthogonal frequency division multiplexing (OFDM) visible light communications (VLC) system. OFDM-VLC with quadrature phase shift keying, 16- and 64-quadrature amplitude modulation mapping is experimentally demonstrated. Compared with the conventional least square channel estimation method, ISFA, MMSE and WIFA offer improved performance with MMSE offering the best performance in terms of the error vector magnitude but at the cost of high complexity. The authors show that the WIFA can improve the estimation accuracy of time-varying VLC optical channel.",

author = "Bangjiang Lin and Xuan Tang and Zabih Ghassemlooy and Shihao Zhang and Yiwei Li and Yi Wu and Hui Li",

note = "Publisher Copyright: {\textcopyright} The Institution of Engineering and Technology 2016.",

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doi = "10.1049/iet-com.2016.0787",

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T1 - Efficient frequency-domain channel equalisation methods for ofdm visible light communications

AU - Lin, Bangjiang

AU - Tang, Xuan

AU - Ghassemlooy, Zabih

AU - Zhang, Shihao

AU - Li, Yiwei

AU - Wu, Yi

AU - Li, Hui

PY - 2017/1/5

Y1 - 2017/1/5

N2 - The authors present efficient frequency-domain channel estimationmethods based on the intra-symbol frequencydomain averaging (ISFA), minimum mean squared error (MMSE) and weighted inter-frame averaging (WIFA) schemes for the orthogonal frequency division multiplexing (OFDM) visible light communications (VLC) system. OFDM-VLC with quadrature phase shift keying, 16- and 64-quadrature amplitude modulation mapping is experimentally demonstrated. Compared with the conventional least square channel estimation method, ISFA, MMSE and WIFA offer improved performance with MMSE offering the best performance in terms of the error vector magnitude but at the cost of high complexity. The authors show that the WIFA can improve the estimation accuracy of time-varying VLC optical channel.

AB - The authors present efficient frequency-domain channel estimationmethods based on the intra-symbol frequencydomain averaging (ISFA), minimum mean squared error (MMSE) and weighted inter-frame averaging (WIFA) schemes for the orthogonal frequency division multiplexing (OFDM) visible light communications (VLC) system. OFDM-VLC with quadrature phase shift keying, 16- and 64-quadrature amplitude modulation mapping is experimentally demonstrated. Compared with the conventional least square channel estimation method, ISFA, MMSE and WIFA offer improved performance with MMSE offering the best performance in terms of the error vector magnitude but at the cost of high complexity. The authors show that the WIFA can improve the estimation accuracy of time-varying VLC optical channel.

UR - https://www.scopus.com/pages/publications/85006970077

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DO - 10.1049/iet-com.2016.0787

M3 - 文章

AN - SCOPUS:85006970077

SN - 1751-8628

VL - 11

SP - 25

EP - 29

JO - IET Communications

JF - IET Communications

IS - 1

ER -

Efficient frequency-domain channel equalisation methods for ofdm visible light communications

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