A new coding method for a multiple-access system with a large number of active users

Author

Frolov, Alexey ; Zyablov, Victor

Author_Institution

Inst. for Inf. Transm. Problems, Moscow, Russia

fYear

2015

fDate

April 26 2015-May 1 2015

Firstpage

1

Lastpage

5

Abstract

The paper addresses the problem of constructing an asynchronous multiple access system for a multi-user Q-frequency channel with additive white Gaussian noise (AWGN). We propose a coding scheme for the channel which allows a large number of users to work simultaneously in the system. The scheme combines the ideas of Frequency Shift Keying (FSK) and Frequency Hopping Spread Spectrum (FHSS). The major component of the scheme is a non-binary low-density parity-check (LDPC) code. The efficiency of the resulting multiple-access system is shown by simulations.

Keywords

AWGN channels; channel coding; frequency hop communication; frequency shift keying; multiuser channels; parity check codes; spread spectrum communication; wireless channels; AWGN; FHSS; FSK; active users; additive white Gaussian noise; asynchronous multiple access system; channel coding scheme; frequency hopping spread spectrum; frequency shift keying; multiuser Q-frequency channel; nonbinary LDPC code; nonbinary low density parity check code; Decoding; Encoding; Frequency shift keying; Noise; Parity check codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory Workshop (ITW), 2015 IEEE

Conference_Location

Jerusalem

Print_ISBN

978-1-4799-5524-4

Type

conf

DOI

10.1109/ITW.2015.7133114

Filename

7133114