A scheme to compensate for the input multipath channel effect in an interference cancellation repeater for mobile communication systems

Lee, Moohong; Keum, Byungjik; Shim, Young Serk; Lee, Hwang Soo

doi:10.1109/atc.2008.4760527

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“…The second method is ICS (interference cancellation system) techniques. However, it requires lots of hardware complexity and computational delay [5][6][7][8][9]. To solve these problems, spatially adaptive filtering for RFR is studied, that is, with a certain shape of beam through the signal in the direction of the need to suppress the interference signal, which is also known as beamforming.…”

Section: Introductionmentioning

confidence: 99%

Fast Adaptive Beamforming with Smart Antenna for Radio Frequency Repeater

Wang

Wei

Wang

2016

MATEC Web of Conferences

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Abstract. We present a fast adaptive beamforming null algorithm with smart antenna for Radio Frequency Repeater (RFR). The smart antenna system is realized by a Direction Of Arrival (DOA) Estimator, whose output is used by an adaptive beamforming algorithm to shape a suitable radiation pattern of the equivalent antenna; so that the co-channel interference due to retransmitting antenna can be reduced. The proposed adaptive beamforming algorithm, which has been proved by formulaic analysis and simulation, has a lower computation complexity yet better performance.

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