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FPGA implementation of multiplierless M-QAM modulator

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2 Author(s)
D. M. Klymyshyn ; TRLabs., Saskatoon, Sask., Canada ; D. T. Haluzan

Adaptive multilevel QAM (M-QAM) modulation can increase throughput in a wireless packet data network. A technique is discussed for efficiently realising M-QAM modulators on field programmable gate arrays (FPGAs) using 'multiplierless' finite impulse response (FIR) filters with carry-save addition and canonic signed-digit coefficients. An adaptive M-QAM modulator supporting 4, 16, 64 and 256-QAM is presented

Published in:

Electronics Letters  (Volume:38 ,  Issue: 10 )