Title :
A modified LMS filter for interference cancellation system
Author :
Shin, Bae-Gyun ; Kim, Sang-Hyo
Author_Institution :
Dept. of Mobile Commun. Eng., Sungkyunkwan Univ., Seoul, South Korea
Abstract :
In repeaters in wireless cellular networks, feedback signals from the service antennas to the receiving antennas may cause oscillation so that they break the system operations. For predictive elimination of feedback signals, an interference cancellation method employing LMS (Least Mean Square) filter is proposed. The feedback signals to the input antenna removes the feedback signals using the auto-correlation with the output signals. For predictive elimination of feedback signals more stably and quickly, the number of LMS filter taps and filter coefficient (μ) can be controlled.
Keywords :
cellular radio; interference suppression; least mean squares methods; radio networks; autocorrelation; feedback signal; filter coefficient; interference cancellation system; least mean square filter; modified LMS filter; wireless cellular network; Adaptive filters; Convergence; Correlation; Detectors; Filtering algorithms; Least squares approximation; Repeaters; Adaptive filter; Interference Cancellation System; LMS;
Conference_Titel :
Control Automation and Systems (ICCAS), 2010 International Conference on
Conference_Location :
Gyeonggi-do
Print_ISBN :
978-1-4244-7453-0
Electronic_ISBN :
978-89-93215-02-1
