An Adaptive DFE for High Data Rate Applications
نویسندگان
چکیده
In this paper, a non-uniform number representation and filter transformation techniques are used to increase the throughput rate of a Decision Feedback Equaliser (DFE). The DFE input data is non-uniformly quantised and represented by a signed power-of-two (SPT) number. Using this number representation, multipliers can be replaced with barrel shifters and adders. The mean quantisation noise power using SPT input data is examined. The Delayed Least Mean Square Algorithm (DLMS) is used for training the DFE. The delay in the filter coefficient update, together with transformation techniques, results in a DFE structure, realisable as the cascade of a series of modular sections.
منابع مشابه
ISSCC 2011 / SESSION 20 / HIGH - SPEED TRANSCEIVERS & BUILDING BLOCKS / 20 . 6 20 . 6 A 6 Gb / s Receiver with 32 . 7 dB Adaptive DFE - IIR
To ensure the signal integrity over a lossy channel, an analog equalizer and/or a decision-feedback equalizer (DFE) [2-6] are widely adopted in high-speed data transmission. An adaptive analog equalizer or adaptive DFE is also attractive to compensate the frequency-dependent loss due to the different channel lengths and environment variations. Conventionally, a multiple-tap DFE is adopted to co...
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