Abstract:
Narrow-band interference (NBI) suppression based on Fast Fourier Transform (FFT), in which interference suppression threshold plays a key role, is widely applied in sprea...Show MoreMetadata
Abstract:
Narrow-band interference (NBI) suppression based on Fast Fourier Transform (FFT), in which interference suppression threshold plays a key role, is widely applied in spread spectrum communication system. However, the traditional fixed threshold is not suitable in time varying scenarios. To solve this problem this paper proposes an iterative threshold algorithm based on overlap window which can efficiently mitigate NBI. Furthermore, simplified calculation of the iterative threshold and the structure of its FPGA realization are given. Simulations illustrate the validity of this algorithm, which improves the signal-to-interference ratio (SIR) to 1.0484 dB from original SIR -30 dB.
Published in: 2013 22nd Wireless and Optical Communication Conference
Date of Conference: 16-18 May 2013
Date Added to IEEE Xplore: 02 December 2013
ISBN Information: