A new architecture for orthogonally multiplexed QAM systems
- 30 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1984-1989 vol.3
- https://doi.org/10.1109/glocom.1993.318411
Abstract
The classical architecture for an orthogonally multiplexed QAM system consists of a DFT processor followed by a polyphase filterbank, both working at the rate of individual channels. The paper presents a new architecture consisting of (a) serial-to-parallel conversion, (b) a single polyphase filter, (c) a multitone chirp modulator, and (d) a final equalizer. The overall complexity is of the same order as the classical solution with a different sharing between the memoryless and filtering parts.<>Keywords
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