Coordinate rotation algorithm based non-linear Adaptive Decision Feedback Equalizer

Adaptive equalizer is an indispensable component for high-speed reliable data transmission through wired as well as wireless time-dispersed communication channels to minimize Inter Symbol Interference (ISI). The non-linear Adaptive Decision Feedback Equalizer (ADFE) finds enormous use in applications where the channel distortion is severe for a linear equalizer to handle. High hardware cost of the system makes an urge to redesign it in order to minimize overall circuit complexity and cost. In this paper, ADFE based on pipelined CORDIC architecture is presented using LMS algorithms. The realization results more power efficient, better speed and throughput with good convergence.