Performance Analysis of an LMS Based Adaptive Feedback Canceller for On-Channel Repeaters
Summary :
An on-channel repeater (OCR) performing simultaneous reception and transmission at the same frequency is beneficial to improve spectral efficiency and coverage. In an OCR, it is important to cancel the feedback interference caused by imperfect isolation between the transmit and receive antennas, and least mean square (LMS) based adaptive filters are commonly used for this purpose. In this paper, we analyze the performance of the LMS based adaptive feedback canceller in terms of its transient behavior and the steady-state mean square error (MSE). Through a theoretical analysis, we derive iterative equations to compute transient MSEs and provide a procedure to simply evaluate steady-state MSEs for the adaptive feedback canceller. Simulation results performed to verify the theoretical MSEs show good agreement between the proposed theoretical analysis and the empirical results.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E98-B No.5 pp.908-916
- Publication Date
- 2015/05/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E98.B.908
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Jihoon CHOI
Korea Aerospace University
Young-Ho JUNG
Korea Aerospace University
Keyword
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Jihoon CHOI, Young-Ho JUNG, "Performance Analysis of an LMS Based Adaptive Feedback Canceller for On-Channel Repeaters" in IEICE TRANSACTIONS on Communications,
vol. E98-B, no. 5, pp. 908-916, May 2015, doi: 10.1587/transcom.E98.B.908.
Abstract: An on-channel repeater (OCR) performing simultaneous reception and transmission at the same frequency is beneficial to improve spectral efficiency and coverage. In an OCR, it is important to cancel the feedback interference caused by imperfect isolation between the transmit and receive antennas, and least mean square (LMS) based adaptive filters are commonly used for this purpose. In this paper, we analyze the performance of the LMS based adaptive feedback canceller in terms of its transient behavior and the steady-state mean square error (MSE). Through a theoretical analysis, we derive iterative equations to compute transient MSEs and provide a procedure to simply evaluate steady-state MSEs for the adaptive feedback canceller. Simulation results performed to verify the theoretical MSEs show good agreement between the proposed theoretical analysis and the empirical results.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E98.B.908/_p
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@ARTICLE{e98-b_5_908,
author={Jihoon CHOI, Young-Ho JUNG, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance Analysis of an LMS Based Adaptive Feedback Canceller for On-Channel Repeaters},
year={2015},
volume={E98-B},
number={5},
pages={908-916},
abstract={An on-channel repeater (OCR) performing simultaneous reception and transmission at the same frequency is beneficial to improve spectral efficiency and coverage. In an OCR, it is important to cancel the feedback interference caused by imperfect isolation between the transmit and receive antennas, and least mean square (LMS) based adaptive filters are commonly used for this purpose. In this paper, we analyze the performance of the LMS based adaptive feedback canceller in terms of its transient behavior and the steady-state mean square error (MSE). Through a theoretical analysis, we derive iterative equations to compute transient MSEs and provide a procedure to simply evaluate steady-state MSEs for the adaptive feedback canceller. Simulation results performed to verify the theoretical MSEs show good agreement between the proposed theoretical analysis and the empirical results.},
keywords={},
doi={10.1587/transcom.E98.B.908},
ISSN={1745-1345},
month={May},}
Copy
TY - JOUR
TI - Performance Analysis of an LMS Based Adaptive Feedback Canceller for On-Channel Repeaters
T2 - IEICE TRANSACTIONS on Communications
SP - 908
EP - 916
AU - Jihoon CHOI
AU - Young-Ho JUNG
PY - 2015
DO - 10.1587/transcom.E98.B.908
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E98-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2015
AB - An on-channel repeater (OCR) performing simultaneous reception and transmission at the same frequency is beneficial to improve spectral efficiency and coverage. In an OCR, it is important to cancel the feedback interference caused by imperfect isolation between the transmit and receive antennas, and least mean square (LMS) based adaptive filters are commonly used for this purpose. In this paper, we analyze the performance of the LMS based adaptive feedback canceller in terms of its transient behavior and the steady-state mean square error (MSE). Through a theoretical analysis, we derive iterative equations to compute transient MSEs and provide a procedure to simply evaluate steady-state MSEs for the adaptive feedback canceller. Simulation results performed to verify the theoretical MSEs show good agreement between the proposed theoretical analysis and the empirical results.
ER -
English
