Adaptive coded modulation over slow frequency-selective fading channels

Author

Viswanathan, Harish ; Li, Xiaodong ; Krishnamoorthy, Rajeev

Author_Institution

Lucent Technol., AT&T Bell Labs., Holmdel, NJ, USA

Volume

3

fYear

1999

fDate

36342

Firstpage

2388

Abstract

We consider adaptive coded modulation for systems using QPSK/8PSK/16QAM constellations with a decision-feedback equalizer for slow frequency-selective fading channels. We investigate several potential channel-quality metrics that could be used to choose the correct coding and modulation scheme. We then present a threshold-adaptive algorithm that is especially useful for channels with a wide range of multipath profiles

Keywords

adaptive codes; adaptive modulation; channel coding; decision feedback equalisers; fading channels; modulation coding; multipath channels; quadrature amplitude modulation; quadrature phase shift keying; 16QAM; 8PSK; QPSK; adaptive coded modulation; decision-feedback equalize; multipath profiles; potential channel-quality metrics; slow frequency-selective fading channel; slow frequency-selective fading channels; threshold-adaptive algorithm; Decision feedback equalizers; Filters; Forward error correction; Frequency modulation; Frequency-selective fading channels; Interference; Maximum likelihood decoding; Modulation coding; Pulse shaping methods; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999 IEEE 49th

Conference_Location

Houston, TX

ISSN

1090-3038

Print_ISBN

0-7803-5565-2

Type

conf

DOI

10.1109/VETEC.1999.778500

Filename

778500