Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals

Sandeepkumar; Hoa Le Minh; Nauman Aslam; Mohsin Raza; Anh T. Pham

doi:10.1109/VTCFall.2018.8690584

Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals

Sandeepkumar, Hoa Le Minh, Nauman Aslam, Mohsin Raza, Anh T. Pham

School of Computing Sciences

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

2 Citations (Scopus)

Abstract

Active Constellation Extension (ACE) is widely used to reduce Peak-to-Average Power Ratio (PAPR) in Offset Quadrature Amplitude Modulation based Orthogonal Frequency Division Multiplexing (OFDM/OQAM). To improve overall performance and energy efficiency in OFDM/OQAM systems, this paper proposes Adaptive Scaling (AS) for effective ACE (AS-ACE). The proposed scheme exploits the overlapping structure of the OFDM/OQAM signals and jointly considers adjacent data blocks to obtain the clipping noise. The proposed scheme adaptively extends the constellation points to effectively eliminate peaks in OFDM/OQAM signals. This is achieved by using peak samples of clipping noise, used to generate the peak correcting signal. Least square approximation algorithm is used to fit the waveform of peak correcting signal to the waveform of clipping noise without any decrease in the constellation distance. Simulation results show that the AS-ACE reduces PAPR and Bit Error Rate (BER) and improves convergence speed compared to OSGP technique without requiring increased processing or additional information at the receiver end.

Original language	English
Title of host publication	2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings
Publisher	The Institute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)	9781538663585
DOIs	https://doi.org/10.1109/VTCFall.2018.8690584
Publication status	Published - 2 Jul 2018
Event	88th IEEE Vehicular Technology Conference, VTC-Fall 2018 - Chicago, United States Duration: 27 Aug 2018 → 30 Aug 2018

Publication series

Name	IEEE Vehicular Technology Conference
Volume	2018-August
ISSN (Print)	1550-2252

Conference

Conference	88th IEEE Vehicular Technology Conference, VTC-Fall 2018
Country/Territory	United States
City	Chicago
Period	27/08/18 → 30/08/18

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Active Constellation Extension(ACE)
Adaptive Scaling (AS)
Overlapping Smart Gradient Pro-jection(OSGP)
Peak Average Power Ratio (PAPR)

Access to Document

10.1109/VTCFall.2018.8690584

Cite this

Sandeepkumar, Le Minh, H., Aslam, N., Raza, M., & Pham, A. T. (2018). Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals. In 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings Article 8690584 (IEEE Vehicular Technology Conference; Vol. 2018-August). The Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/VTCFall.2018.8690584

@inproceedings{b2459703a2d04b2aa2ee75ef960af2ca,

title = "Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals",

abstract = "Active Constellation Extension (ACE) is widely used to reduce Peak-to-Average Power Ratio (PAPR) in Offset Quadrature Amplitude Modulation based Orthogonal Frequency Division Multiplexing (OFDM/OQAM). To improve overall performance and energy efficiency in OFDM/OQAM systems, this paper proposes Adaptive Scaling (AS) for effective ACE (AS-ACE). The proposed scheme exploits the overlapping structure of the OFDM/OQAM signals and jointly considers adjacent data blocks to obtain the clipping noise. The proposed scheme adaptively extends the constellation points to effectively eliminate peaks in OFDM/OQAM signals. This is achieved by using peak samples of clipping noise, used to generate the peak correcting signal. Least square approximation algorithm is used to fit the waveform of peak correcting signal to the waveform of clipping noise without any decrease in the constellation distance. Simulation results show that the AS-ACE reduces PAPR and Bit Error Rate (BER) and improves convergence speed compared to OSGP technique without requiring increased processing or additional information at the receiver end.",

keywords = "Active Constellation Extension(ACE), Adaptive Scaling (AS), Overlapping Smart Gradient Pro-jection(OSGP), Peak Average Power Ratio (PAPR)",

author = "Sandeepkumar and {Le Minh}, Hoa and Nauman Aslam and Mohsin Raza and Pham, {Anh T.}",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 88th IEEE Vehicular Technology Conference, VTC-Fall 2018 ; Conference date: 27-08-2018 Through 30-08-2018",

year = "2018",

month = jul,

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doi = "10.1109/VTCFall.2018.8690584",

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Sandeepkumar, Le Minh, H, Aslam, N, Raza, M & Pham, AT 2018, Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals. in 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings., 8690584, IEEE Vehicular Technology Conference, vol. 2018-August, The Institute of Electrical and Electronics Engineers (IEEE), 88th IEEE Vehicular Technology Conference, VTC-Fall 2018, Chicago, United States, 27/08/18. https://doi.org/10.1109/VTCFall.2018.8690584

Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals. / Sandeepkumar; Le Minh, Hoa; Aslam, Nauman et al.
2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings. The Institute of Electrical and Electronics Engineers (IEEE), 2018. 8690584 (IEEE Vehicular Technology Conference; Vol. 2018-August).

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

TY - GEN

T1 - Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals

AU - Sandeepkumar,

AU - Le Minh, Hoa

AU - Aslam, Nauman

AU - Raza, Mohsin

AU - Pham, Anh T.

PY - 2018/7/2

Y1 - 2018/7/2

N2 - Active Constellation Extension (ACE) is widely used to reduce Peak-to-Average Power Ratio (PAPR) in Offset Quadrature Amplitude Modulation based Orthogonal Frequency Division Multiplexing (OFDM/OQAM). To improve overall performance and energy efficiency in OFDM/OQAM systems, this paper proposes Adaptive Scaling (AS) for effective ACE (AS-ACE). The proposed scheme exploits the overlapping structure of the OFDM/OQAM signals and jointly considers adjacent data blocks to obtain the clipping noise. The proposed scheme adaptively extends the constellation points to effectively eliminate peaks in OFDM/OQAM signals. This is achieved by using peak samples of clipping noise, used to generate the peak correcting signal. Least square approximation algorithm is used to fit the waveform of peak correcting signal to the waveform of clipping noise without any decrease in the constellation distance. Simulation results show that the AS-ACE reduces PAPR and Bit Error Rate (BER) and improves convergence speed compared to OSGP technique without requiring increased processing or additional information at the receiver end.

AB - Active Constellation Extension (ACE) is widely used to reduce Peak-to-Average Power Ratio (PAPR) in Offset Quadrature Amplitude Modulation based Orthogonal Frequency Division Multiplexing (OFDM/OQAM). To improve overall performance and energy efficiency in OFDM/OQAM systems, this paper proposes Adaptive Scaling (AS) for effective ACE (AS-ACE). The proposed scheme exploits the overlapping structure of the OFDM/OQAM signals and jointly considers adjacent data blocks to obtain the clipping noise. The proposed scheme adaptively extends the constellation points to effectively eliminate peaks in OFDM/OQAM signals. This is achieved by using peak samples of clipping noise, used to generate the peak correcting signal. Least square approximation algorithm is used to fit the waveform of peak correcting signal to the waveform of clipping noise without any decrease in the constellation distance. Simulation results show that the AS-ACE reduces PAPR and Bit Error Rate (BER) and improves convergence speed compared to OSGP technique without requiring increased processing or additional information at the receiver end.

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KW - Overlapping Smart Gradient Pro-jection(OSGP)

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M3 - Conference contribution

AN - SCOPUS:85064933326

T3 - IEEE Vehicular Technology Conference

BT - 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings

PB - The Institute of Electrical and Electronics Engineers (IEEE)

T2 - 88th IEEE Vehicular Technology Conference, VTC-Fall 2018

Y2 - 27 August 2018 through 30 August 2018

ER -

Sandeepkumar, Le Minh H, Aslam N, Raza M, Pham AT. Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals. In 2018 IEEE 88th Vehicular Technology Conference, VTC-Fall 2018 - Proceedings. The Institute of Electrical and Electronics Engineers (IEEE). 2018. 8690584. (IEEE Vehicular Technology Conference). doi: 10.1109/VTCFall.2018.8690584

Adaptive Scaling Active Constellation Extension Scheme with Fast Convergence for PAPR Reduction in OFDM/OQAM Signals

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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