Fine-grain Pipelined Adaptive DFE Architectures Using Relaxed Look-Ahead

Abstract

In the area of digital communications, there is a growing need for high-speed equalizers for applications such as high-density magnetic storage systems, subscriber loop applications and mobile radio. The adaptive decision-feedback equalizer (ADFE) has been employed successfully for combatting inter-symbol interference (ISI). However, the ADFE has remained difficult to pipeline and in this chapter we propose a novel approach for fine-grain pipelining of the ADFE.