The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
조회수
110
RF 수신기에 대한 블라인드 비선형 보상은 5G 이동통신에서 중요한 연구 주제입니다. 여기서는 고용량 및 초광대역 서비스를 달성하기 위해 더 높은 수준의 변조 방식이 더 자주 사용됩니다. 비선형 보상 회로는 신호 대역폭의 XNUMX배가 넘는 상호 변조 대역폭을 처리해야 하기 때문에 전력 소비를 절약하려면 샘플링 주파수를 줄이는 것이 필수적입니다. 본 논문에서는 서브 나이퀴스트 샘플링 아날로그-디지털 변환을 사용하는 새로운 블라인드 비선형 보상 기법을 제안합니다. 제안된 서브나이퀴스트 샘플링 기법에서는 대역 외 왜곡 스펙트럼이 접혀 있지만 왜곡 전력을 사용하여 보상기 계수를 결정하는 것은 여전히 가능합니다. 제안된 기법은 EVM에서 기존 보상 방식과 거의 동일한 보상 성능을 달성하면서도 ADC(Analog to Digital Converter)의 샘플링 속도를 일반 샘플링 주파수의 절반 이하로 줄인다. 제안된 기술은 동시 이중 대역 통신 시스템에 적용될 수 있으며 플랫 레일리 페이딩 환경에 적응할 수 있습니다.
Kan KIMURA
The University of Electro-Communications
Yasushi YAMAO
The University of Electro-Communications
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부
Kan KIMURA, Yasushi YAMAO, "Bandwidth-Efficient Blind Nonlinear Compensation of RF Receiver Employing Folded-Spectrum Sub-Nyquist Sampling Technique" in IEICE TRANSACTIONS on Communications,
vol. E102-B, no. 3, pp. 632-640, March 2019, doi: 10.1587/transcom.2018EBP3100.
Abstract: Blind nonlinear compensation for RF receivers is an important research topic in 5G mobile communication, in which higher level modulation schemes are employed more often to achieve high capacity and ultra-broadband services. Since nonlinear compensation circuits must handle intermodulation bandwidths that are more than three times the signal bandwidth, reducing the sampling frequency is essential for saving power consumption. This paper proposes a novel blind nonlinear compensation technique that employs sub-Nyquist sampling analog-to-digital conversion. Although outband distortion spectrum is folded in the proposed sub-Nyquist sampling technique, determination of compensator coefficients is still possible by using the distortion power. Proposed technique achieves almost same compensation performance in EVM as the conventional compensation scheme, while reducing sampling speed of analog to digital convertor (ADC) to less than half the normal sampling frequency. The proposed technique can be applied in concurrent dual-band communication systems and adapt to flat Rayleigh fading environments.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018EBP3100/_p
부
@ARTICLE{e102-b_3_632,
author={Kan KIMURA, Yasushi YAMAO, },
journal={IEICE TRANSACTIONS on Communications},
title={Bandwidth-Efficient Blind Nonlinear Compensation of RF Receiver Employing Folded-Spectrum Sub-Nyquist Sampling Technique},
year={2019},
volume={E102-B},
number={3},
pages={632-640},
abstract={Blind nonlinear compensation for RF receivers is an important research topic in 5G mobile communication, in which higher level modulation schemes are employed more often to achieve high capacity and ultra-broadband services. Since nonlinear compensation circuits must handle intermodulation bandwidths that are more than three times the signal bandwidth, reducing the sampling frequency is essential for saving power consumption. This paper proposes a novel blind nonlinear compensation technique that employs sub-Nyquist sampling analog-to-digital conversion. Although outband distortion spectrum is folded in the proposed sub-Nyquist sampling technique, determination of compensator coefficients is still possible by using the distortion power. Proposed technique achieves almost same compensation performance in EVM as the conventional compensation scheme, while reducing sampling speed of analog to digital convertor (ADC) to less than half the normal sampling frequency. The proposed technique can be applied in concurrent dual-band communication systems and adapt to flat Rayleigh fading environments.},
keywords={},
doi={10.1587/transcom.2018EBP3100},
ISSN={1745-1345},
month={March},}
부
TY - JOUR
TI - Bandwidth-Efficient Blind Nonlinear Compensation of RF Receiver Employing Folded-Spectrum Sub-Nyquist Sampling Technique
T2 - IEICE TRANSACTIONS on Communications
SP - 632
EP - 640
AU - Kan KIMURA
AU - Yasushi YAMAO
PY - 2019
DO - 10.1587/transcom.2018EBP3100
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E102-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2019
AB - Blind nonlinear compensation for RF receivers is an important research topic in 5G mobile communication, in which higher level modulation schemes are employed more often to achieve high capacity and ultra-broadband services. Since nonlinear compensation circuits must handle intermodulation bandwidths that are more than three times the signal bandwidth, reducing the sampling frequency is essential for saving power consumption. This paper proposes a novel blind nonlinear compensation technique that employs sub-Nyquist sampling analog-to-digital conversion. Although outband distortion spectrum is folded in the proposed sub-Nyquist sampling technique, determination of compensator coefficients is still possible by using the distortion power. Proposed technique achieves almost same compensation performance in EVM as the conventional compensation scheme, while reducing sampling speed of analog to digital convertor (ADC) to less than half the normal sampling frequency. The proposed technique can be applied in concurrent dual-band communication systems and adapt to flat Rayleigh fading environments.
ER -