Information and cut-off rates for multiple-pulse position modulation on multi-path channels

Author

Park, H.

Author_Institution

Network Solutions Lab., Samsung Electron. Co. Ltd., Kyungki, South Korea

Volume

147

Issue

4

fYear

2000

fDate

8/1/2000 12:00:00 AM

Firstpage

229

Lastpage

233

Abstract

The effect is examined of multipath dispersion on the information and cut-off rates of multiple-pulse position modulation. Over multipath channels, intersymbol interference (ISI) can reduce the information rate significantly. When the input codewords are independent and identically distributed with a uniform distribution, lower and upper bounds are presented for the information rate on a moderate ISI channel in terms of the average mutual information of a memoryless Gaussian vector channel with scaled input codewords. The cut-off rate of each modulation scheme is also examined in the presence of ISI, and the power required to achieve the cut-off rate is calculated for various bit rates over the channel 3 dB bandwidth

Keywords

intersymbol interference; multipath channels; optical communication; optical modulation; pulse position modulation; telecommunication channels; vectors; cut-off rate; cut-off rates; information; information rate; input codewords; intersymbol interference; memoryless Gaussian vector channel; moderate ISI channel; multi-path channels; multipath channels; multiple-pulse position modulation; scaled input codewords;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:20000494

Filename

871119