Upper-bound performance of a wide-band adaptive modem

Author

Wong, C.H. ; Hanzo, Lajos

Author_Institution

Dept. of Electr. & Comput. Sci., Southampton Univ., UK

Volume

48

Issue

3

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

367

Lastpage

369

Abstract

Adaptive modulation is applied in conjunction with a decision-feedback equalizer (DFE) in order to mitigate the effects of the slowly varying wide-band multipath Rayleigh fading channel in a noise-limited environment. An upper-bound mean bit-error rate and bits per symbol performance is introduced for this scheme by utilizing the pseudo signal-to-noise ratio at the output of the DFE in order to switch the modulation schemes on a burst-by-burst basis

Keywords

Rayleigh channels; adaptive modulation; broadband networks; decision feedback equalisers; error statistics; interference suppression; modems; multipath channels; quadrature amplitude modulation; time-varying channels; DFE; adaptive modulation; bits per symbol performance; decision-feedback equalizer; mean bit-error rate; modulation scheme; noise-limited environment; pseudo signal-to-noise ratio; slowly varying wide-band multipath Rayleigh fading channel; upper-bound performance; wide-band adaptive modem; Amplitude modulation; Bit error rate; Decision feedback equalizers; Filters; Intersymbol interference; Modems; Quadrature amplitude modulation; Signal to noise ratio; Switches; Wideband;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.837037

Filename

837037