An implementation of the LMS adaptive filter using an SIMD multiprocessor ring architecture

23 March 2005

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

Vol. 10, 1605-1608
https://doi.org/10.1109/icassp.1985.1168200

Abstract

A new architecture for a Single-Instruction Multiple Data (SIMD) implementation of the LMS adaptive algorithm is investigated. This is denoted as a ring architecture, due to its physical configuration, and it effectively solves the latency problem often associated with prediction error feedback in adaptive filters. The multiprocessor ring efficiently updates the filter input vector by operating as a pipeline structure, while behaving as a parallel structure in computing the filter output and applying the weight adaptation algorithm. Lastly, individual processor timing and capacity considerations are examined.

Keywords

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