有线通信辅助决策反馈均衡

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 1900-01-01 DOI:10.1109/ACSSC.2005.1599860

H. Dehghan, C. Weber

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引用次数: 1

摘要

开发并推导了TIA布线标准(2001)中描述的Cat-5子类电缆结构的分析模型，并发现了一个基于物理测量的简单FIR滤波器模型，该模型准确地代表了所开发的模型。利用电缆脉冲响应的特性，提出了一种新的均衡器结构(辅助决策反馈均衡器- ADFE)，它是一种经典的决策反馈均衡器，在反馈回路中具有固定的无限脉冲响应(IIR)。给出了一种训练新均衡器的算法，并证明如果选择足够长的反馈，所提出的IIR滤波器可以减小为单极滤波器。该均衡器在降低硬件复杂度的同时，在误码率(BER)和信噪比(SNR)方面都明显优于传统的DFE

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Aided Decision Feedback Equalization for Wired Communication

An analytic model of the Cat-5 subclass cable structure, as described in TIA cabling standards (2001), is developed and derived and a simple FIR filter model based on physical measurements is found which accurately represents the developed model. Taking advantage of the properties of the cable impulse response, a new equalizer structure (dubbed aided decision feedback equalizer - ADFE) is proposed that is a classical decision feedback equalizers (DFE) with a fixed infinite impulse response (IIR) in the feedback loop. An algorithm is given for training the new equalizer and it is shown that the proposed IIR filter reduces to a single pole filter if the feedback is chosen to be sufficiently long. The new equalizer is shown to have significantly better performance than the conventional DFE both in terms of bit error rate (BER) and signal to noise ratio (SNR) with reduced hardware complexity

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Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005.

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