A bandwidth-optimized reduced-complexity equalized multicarrier transceiver

Author

Al-Dhahir, Naofal ; Cioffi, John M.

Author_Institution

Gen. Electr. Corp. Res. & Dev. Center, Schenectady, NY, USA

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

948

Lastpage

956

Abstract

A bandwidth-optimized and equalized multicarrier transceiver that achieves near-optimum performance at a practical complexity level is described. The equalizer used is a relatively short FIR filter whose taps and delay are set to optimize the performance of the multicarrier transceiver. Simulation results on a set of carrier-serving-area digital subscriber loops are also presented to demonstrate the separate and joint effects of bandwidth optimization and equalization on performance. Finally, the intriguing idea of using a pole-zero equalizer to achieve the high performance of long FIR equalizers at a much lower implementation cost is investigated

Keywords

FIR filters; delays; digital communication; digital filters; equalisers; filtering theory; optimisation; poles and zeros; subscriber loops; transceivers; FIR filter delay; FIR filter taps; bandwidth equalization; bandwidth optimization; bandwidth optimized multicarrier transceiver; carrier serving area digital subscriber loops; long FIR equalizers; near-optimum performance; pole-zero equalizer; reduced complexity equalized transceiver; short FIR filter; simulation results; Bandwidth; Bit rate; Costs; Delay; Equalizers; Finite impulse response filter; Modems; OFDM modulation; Signal processing algorithms; Transceivers;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.618299

Filename

618299