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
이동통신 무선 중계기에 대한 간섭 제거(ICAN) 방식이 제시된다. 무선 중계기가 송신 안테나와 수신 안테나 사이의 격리보다 큰 이득을 가지면 피드백 간섭 신호로 인해 진동합니다. 무선 중계기의 피드백 발진을 방지하기 위해 먼저 무선 중계기의 피드백 발진 모델을 공식화한 후 해당 모델로부터 ICAN 모델을 도출합니다. 도출된 ICAN 모델로부터 중계기의 안정성과 신호 품질은 중계기의 이득과 지연, 피드백 경로의 전파 지연, 피드백 채널 특성, 피드백 채널 추정 알고리즘의 성능에 따라 달라짐을 보여줍니다. 또한 중계기의 안정성 조건이 중계기 출력 신호의 품질을 보장하지 않는 것으로 나타났습니다. 중계기의 안정성과 신호 품질을 보장하기 위해 반복 알고리즘을 기반으로 한 ICAN 방식이 후속적으로 제안됩니다. 시뮬레이션 결과는 중계기의 안정성 및 신호 품질과 앞서 언급한 요소의 영향 사이의 관계를 확인합니다. 제안된 ICAN 방식을 사용하여 중계기 출력 신호에 대해 약 6.3%의 평균 오류 벡터 크기(품질 표시기)를 달성했습니다.
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Moohong LEE, Byungjik KEUM, Young Serk SHIM, Hwang Soo LEE, "An Interference Cancellation Scheme for Mobile Communication Radio Repeaters" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 5, pp. 1778-1785, May 2009, doi: 10.1587/transcom.E92.B.1778.
Abstract: An interference cancellation (ICAN) scheme for mobile communication radio repeaters is presented. When a radio repeater has a gain that is larger than the isolation between its transmit and receive antennas, it oscillates due to feedback interference signals. To prevent feedback oscillation of a radio repeater, we first formulate a feedback oscillation model of the radio repeater and then derive an ICAN model from that model. From the derived ICAN model, we show that the stability and the signal quality of the repeater depend on the repeater's gain and delay, the propagation delay on feedback paths, feedback channel characteristics, and the capability of the feedback channel estimation algorithm. It is also shown that the stability condition of the repeater does not guarantee the quality of the repeater's output signal. To guarantee repeater's stability and signal quality, an ICAN scheme based on an iterative algorithm is subsequently proposed. The simulation results confirm the relationship between the stability and signal quality of the repeater and the impact of the aforementioned factors. Using the proposed ICAN scheme, a mean error vector magnitude (quality indicator) of about 6.3% for the repeater's output signal was achieved.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1778/_p
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@ARTICLE{e92-b_5_1778,
author={Moohong LEE, Byungjik KEUM, Young Serk SHIM, Hwang Soo LEE, },
journal={IEICE TRANSACTIONS on Communications},
title={An Interference Cancellation Scheme for Mobile Communication Radio Repeaters},
year={2009},
volume={E92-B},
number={5},
pages={1778-1785},
abstract={An interference cancellation (ICAN) scheme for mobile communication radio repeaters is presented. When a radio repeater has a gain that is larger than the isolation between its transmit and receive antennas, it oscillates due to feedback interference signals. To prevent feedback oscillation of a radio repeater, we first formulate a feedback oscillation model of the radio repeater and then derive an ICAN model from that model. From the derived ICAN model, we show that the stability and the signal quality of the repeater depend on the repeater's gain and delay, the propagation delay on feedback paths, feedback channel characteristics, and the capability of the feedback channel estimation algorithm. It is also shown that the stability condition of the repeater does not guarantee the quality of the repeater's output signal. To guarantee repeater's stability and signal quality, an ICAN scheme based on an iterative algorithm is subsequently proposed. The simulation results confirm the relationship between the stability and signal quality of the repeater and the impact of the aforementioned factors. Using the proposed ICAN scheme, a mean error vector magnitude (quality indicator) of about 6.3% for the repeater's output signal was achieved.},
keywords={},
doi={10.1587/transcom.E92.B.1778},
ISSN={1745-1345},
month={May},}
부
TY - JOUR
TI - An Interference Cancellation Scheme for Mobile Communication Radio Repeaters
T2 - IEICE TRANSACTIONS on Communications
SP - 1778
EP - 1785
AU - Moohong LEE
AU - Byungjik KEUM
AU - Young Serk SHIM
AU - Hwang Soo LEE
PY - 2009
DO - 10.1587/transcom.E92.B.1778
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2009
AB - An interference cancellation (ICAN) scheme for mobile communication radio repeaters is presented. When a radio repeater has a gain that is larger than the isolation between its transmit and receive antennas, it oscillates due to feedback interference signals. To prevent feedback oscillation of a radio repeater, we first formulate a feedback oscillation model of the radio repeater and then derive an ICAN model from that model. From the derived ICAN model, we show that the stability and the signal quality of the repeater depend on the repeater's gain and delay, the propagation delay on feedback paths, feedback channel characteristics, and the capability of the feedback channel estimation algorithm. It is also shown that the stability condition of the repeater does not guarantee the quality of the repeater's output signal. To guarantee repeater's stability and signal quality, an ICAN scheme based on an iterative algorithm is subsequently proposed. The simulation results confirm the relationship between the stability and signal quality of the repeater and the impact of the aforementioned factors. Using the proposed ICAN scheme, a mean error vector magnitude (quality indicator) of about 6.3% for the repeater's output signal was achieved.
ER -