Post-Compensation Technique for Carrier Superposed Satellite Channel Including Nonlinear TWTA

Takehiro ISHIGURO; Takao HARA; Minoru OKADA

doi:10.1587/transcom.E95.B.3420

Post-Compensation Technique for Carrier Superposed Satellite Channel Including Nonlinear TWTA

Takehiro ISHIGURO, Takao HARA, Minoru OKADA

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For effective use of the frequency band, carrier superposing (common band) technique has been introduced to satellite communication systems. On the other hand, satellite's TWTA (Traveling Wave Tube Amplifier) should be operated near its saturation level for power efficiency. However, the TWTA nonlinearity characteristics around that level causes interference in carrier superposing systems. Therefore in this paper, a post-compensation technique for TWTA nonlinear distortion is introduced and verified for practical use in a carrier superposed Point to Point satellite communication system which adopts interference canceller. Simulation results show that it is possible to reduce the bit error rate degradation over the entire range, especially at nonlinear operating point.

Publication: IEICE TRANSACTIONS on Communications Vol.E95-B No.11 pp.3420-3427

Publication Date: 2012/11/01

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Online ISSN: 1745-1345

DOI: 10.1587/transcom.E95.B.3420

Type of Manuscript: Special Section PAPER (Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2011)

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Takehiro ISHIGURO, Takao HARA, Minoru OKADA, "Post-Compensation Technique for Carrier Superposed Satellite Channel Including Nonlinear TWTA" in IEICE TRANSACTIONS on Communications, vol. E95-B, no. 11, pp. 3420-3427, November 2012, doi: 10.1587/transcom.E95.B.3420.
Abstract: For effective use of the frequency band, carrier superposing (common band) technique has been introduced to satellite communication systems. On the other hand, satellite's TWTA (Traveling Wave Tube Amplifier) should be operated near its saturation level for power efficiency. However, the TWTA nonlinearity characteristics around that level causes interference in carrier superposing systems. Therefore in this paper, a post-compensation technique for TWTA nonlinear distortion is introduced and verified for practical use in a carrier superposed Point to Point satellite communication system which adopts interference canceller. Simulation results show that it is possible to reduce the bit error rate degradation over the entire range, especially at nonlinear operating point.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.3420/_p

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@ARTICLE{e95-b_11_3420,
author={Takehiro ISHIGURO, Takao HARA, Minoru OKADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Post-Compensation Technique for Carrier Superposed Satellite Channel Including Nonlinear TWTA},
year={2012},
volume={E95-B},
number={11},
pages={3420-3427},
abstract={For effective use of the frequency band, carrier superposing (common band) technique has been introduced to satellite communication systems. On the other hand, satellite's TWTA (Traveling Wave Tube Amplifier) should be operated near its saturation level for power efficiency. However, the TWTA nonlinearity characteristics around that level causes interference in carrier superposing systems. Therefore in this paper, a post-compensation technique for TWTA nonlinear distortion is introduced and verified for practical use in a carrier superposed Point to Point satellite communication system which adopts interference canceller. Simulation results show that it is possible to reduce the bit error rate degradation over the entire range, especially at nonlinear operating point.},
keywords={},
doi={10.1587/transcom.E95.B.3420},
ISSN={1745-1345},
month={November},}

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TY - JOUR
TI - Post-Compensation Technique for Carrier Superposed Satellite Channel Including Nonlinear TWTA
T2 - IEICE TRANSACTIONS on Communications
SP - 3420
EP - 3427
AU - Takehiro ISHIGURO
AU - Takao HARA
AU - Minoru OKADA
PY - 2012
DO - 10.1587/transcom.E95.B.3420
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2012
AB - For effective use of the frequency band, carrier superposing (common band) technique has been introduced to satellite communication systems. On the other hand, satellite's TWTA (Traveling Wave Tube Amplifier) should be operated near its saturation level for power efficiency. However, the TWTA nonlinearity characteristics around that level causes interference in carrier superposing systems. Therefore in this paper, a post-compensation technique for TWTA nonlinear distortion is introduced and verified for practical use in a carrier superposed Point to Point satellite communication system which adopts interference canceller. Simulation results show that it is possible to reduce the bit error rate degradation over the entire range, especially at nonlinear operating point.
ER -