Title :
FPGA implementation of a same-frequency cellular repeater using adaptive feedback cancellation
Author :
Morgan, D.R. ; Zierdt, Michael G. ; Gudovskiy, Denis A. ; Pastalan, John Z. ; Zhengxiang Ma
Author_Institution :
Bell Labs., Alcatel-Lucent, Murray Hill, NJ, USA
Abstract :
We have implemented a same-frequency cellular repeater that uses adaptive signal processing to cancel the feedback path, thereby allowing high gain while maintaining stability. Preliminary results are presented for a real-time laboratory demonstration using an FPGA development board, realizing cancellation of about 20 dB over a 10-MHz bandwidth.
Keywords :
feedback; field programmable gate arrays; repeaters; signal processing; FPGA implementation; adaptive feedback cancellation; adaptive signal processing; feedback path; same-frequency cellular repeater; stability; Base stations; Downlink; Field programmable gate arrays; Laboratories; Real-time systems; Repeaters; Transmitting antennas; Adaptive feedback cancellation; FPGA; cellular; repeater;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2013 IEEE International Conference on
Conference_Location :
Vancouver, BC
DOI :
10.1109/ICASSP.2013.6638557
