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In this paper, a new interference rejection filter using the data-recycling technique is presented. The reference signal of the interference rejection filter is formed by using chip decisions, which is correlated with the narrowband interference components of the received signal. The decision feedback techniques reduce the distortion of the desired signal, which is introduced by the interference rejection filter through the use of feedback chip decisions. In order to update the filter coefficients a simple and efficient data-recycling technique that has improved performance over the conventional LMS algorithm is used. The performance of the proposed interference rejection filter is compared to filters with conventional LMS linear filter. The results show that the convergence speed of the proposed interference rejection filter using decision feedback and data-recycling technique is significantly faster than that of the conventional filters. Also, BER performance of the interference rejection filter demonstrates the superiority of the proposed filter algorithm.

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Abstract

Ⅰ. Introduction

Ⅱ. Decision Feedback Interference Rejection Filter Structure

Ⅲ. The Data-Recycling LMS Algorithm

Ⅳ. Computer Simulation Results and Discussions

Ⅴ. Conclusions

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UCI(KEPA) : I410-ECN-0101-2009-569-017765767