A new architecture for orthogonally multiplexed QAM systems

Author

Cariolaro, G. ; Tognetti, D. ; Vannucchi, G.

Author_Institution

Dipartimento di Elettronica e Inf., Padova Univ., Italy

fYear

1993

fDate

29 Nov-2 Dec 1993

Firstpage

1984

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

amplitude modulation; digital filters; equalisers; filtering and prediction theory; modulators; multiplexing; DFT processor; architecture; equalizer; multitone chirp modulator; orthogonally multiplexed QAM systems; polyphase filterbank; serial-to-parallel conversion; Chirp modulation; Digital TV; Discrete Fourier transforms; Equalizers; Filter bank; Filtering; Modems; Quadrature amplitude modulation; Radio spectrum management; Time division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1993, including a Communications Theory Mini-Conference. Technical Program Conference Record, IEEE in Houston. GLOBECOM '93., IEEE

Conference_Location

Houston, TX

Print_ISBN

0-7803-0917-0

Type

conf

DOI

10.1109/GLOCOM.1993.318411

Filename

318411