Optimal soft-decision decoding for a 1-bit A/D channel

Author

Schodorf, Jeffrey B.

Author_Institution

Lincoln Lab., MIT, Lexington, MA, USA

Volume

2

fYear

1999

fDate

1999

Firstpage

1172

Abstract

An R₀ analysis for a noncoherent DPSK channel that includes a 1-bit A/D converter in the receiver front-end is presented. The analysis results are used to obtain probability of error bounds that characterize the channel when a rate R=1/2, constraint length L=7 convolutional code is used. The advantage of the R₀ approach is that quantization thresholds for the soft-decision decoder can be optimized analytically, without relying on lengthy simulations. However, once the thresholds are optimally chosen, simulations are used to verify the validity of the bounds

Keywords

channel coding; convolutional codes; decoding; differential phase shift keying; error statistics; modulation coding; quantisation (signal); 1 bit; 1-bit A/D channel; constraint length; convolutional code; noncoherent DPSK channel; optimal soft-decision decoding; probability of error bounds; quantization thresholds; receiver front-end; simulations; Band pass filters; Convolutional codes; Decoding; Demodulation; Differential quadrature phase shift keying; Laboratories; Memoryless systems; Personal communication networks; Quantization; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1999. ICC '99. 1999 IEEE International Conference on

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-5284-X

Type

conf

DOI

10.1109/ICC.1999.765485

Filename

765485