| Title |
An Effective Weight Tap Selection Algorithm for the Adaptive Filter in the Interference Cancellation System |
| Authors |
홍승모(Seungmo Hong) ; 김종훈(Chonghoon Kim) ; 임성빈(Seongbin Lim) |
| DOI |
https://doi.org/10.5573/ieie.2019.56.3.3 |
| Keywords |
On-Channel Repeater ; ICS Repeater ; LMS ; Adaptive filter ; Interference Cancelling |
| Abstract |
In this paper, we propose an algorithm that minimizes the amount of computation by selecting only the effective coefficients in the adaptive filter used in the RF interference cancellation system. We analyzed the effect of this algorithm on the interference cancellation performance of the repeater. The proposed algorithm can be applied irrespective of the adaptive algorithm of the filter, and it can reduce the multiplication and addition operations required for the filter calculation by 25-50% within a range where there is little change in performance or allow some degradation. Simulation results confirm that the proposed algorithm can perform stable functions in steady state, transient state, and fading feedback environment. |