Low density parity check codes in a frequency hopped communication system with partial-band interference

Author

Schremmer, Scott H.

Author_Institution

Lincoln Lab., Massachusetts Inst. of Technol., Lexington, MA, USA

Volume

2

fYear

2002

fDate

7-10 Oct. 2002

Firstpage

895

Abstract

In this paper the applicability of low density parity check (LDPC) codes to a frequency hopped communications system with partial-band jamming is investigated. We show an irregular LDPC code which exhibits good waterfall and error floor performance with a block length of 1560 bits using binary phase-shift keying. The performance of this code is investigated in a partial band jammed environment with various channel interleaver lengths. We show that with a channel interleaver consisting of 120 hops and available side information, a partial band jammer only causes a loss of 0.3 dB over the full band case at a bit error rate of 10^-5.

Keywords

AWGN; decoding; error statistics; frequency hop communication; jamming; parity check codes; spread spectrum communication; BER; additive white Gaussian noise; binary phase-shift keying; bit error rate; block length; channel interleaver lengths; decoding; error floor performance; frequency hopped spread spectrum communication; irregular LDPC code; low density parity check codes; partial-band interference; partial-band jamming; side information; simulation results; waterfall performance; Belief propagation; Block codes; Error analysis; Frequency; Interference; Iterative algorithms; Iterative decoding; Jamming; Parity check codes; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

MILCOM 2002. Proceedings

Print_ISBN

0-7803-7625-0

Type

conf

DOI

10.1109/MILCOM.2002.1179593

Filename

1179593