FPGA Implementation of a Configurable Complex Blind Adaptive Equalizer

Kevin Banovic; Mohammed A.S. Khalid; Esam Abdel-Raheem

doi:10.1109/ISSPIT.2007.4458069

2007 IEEE International Symposium on Signal Processing and Information Technology

FPGA Implementation of a Configurable Complex Blind Adaptive Equalizer

Year: 2007

DOI Bookmark: 10.1109/ISSPIT.2007.4458069

Authors

Kevin Banovic, ECE Department, University of Toronto, 10 King's College Road, Toronto, ON M5S 3G4 Canada, Email: banovic@eecg.toronto.edu
Mohammed A.S. Khalid, ECE Department, University of Windsor, 401 Sunset Ave., Windsor, ON N9B 3P4 Canada, Email: mkhalid@uwindsor.ca
Esam Abdel-Raheem, ECE Department, University of Windsor, 401 Sunset Ave., Windsor, ON N9B 3P4 Canada, Email: eraheem@uwindsor.ca

Abstract

This paper discusses the design and field programmable gate array (FPGA) implementation of a complex 18- tap blind adaptive equalizer, which can be utilized in the development of quadrature amplitude modulation (QAM) based demodulators for cable modems. The design can be configured to achieve channel equalization for square QAM signals up to 256-QAM by means of the constant modulus algorithm (CMA), multimodulus algorithm (MMA), radius-adjusted modified-multimodulus algorithm (RMMA), and radius-adjusted multimodulus decision- directed algorithm (RMDA). The implementation operates at a maximum symbol frequency of 8.055 MBaud, which is comparable to recent QAM equalizer designs for cable modems.

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FPGA Implementation of a Configurable Complex Blind Adaptive Equalizer

Authors

Abstract

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