High-level modulation with Reed-Solomon codes and slow frequency hopping for land mobile communications

Author

Zein, Nader F. ; Clarkson, Trevor G.

Author_Institution

Commun. Res. Centre, Lancaster Univ., UK

Volume

3

fYear

1996

Firstpage

1840

Abstract

Various soft-decision-decoding methods based on “error and erasure” decoding schemes of Reed-Solomon are investigated for a frequency hopped (FH) system. A modified Welch-Berlekamp decoding algorithm is used in order to reduce the complexity required by the decoder. Rayleigh channel fading parameters were estimated using linear interpolation. The BER performance of the system in the presence of AWGN, co-channel interference and slow Rayleigh fading are evaluated by computer simulation. Space diversity is applied to enhance the system performance. It is shown that “error and erasure” decoding can achieve more than 3dB gain over “error only” decoding at bit-error-probability of 10^-5

Keywords

Gaussian noise; Rayleigh channels; Reed-Solomon codes; cochannel interference; computational complexity; decoding; diversity reception; error correction codes; error statistics; fading; frequency hop communication; interpolation; land mobile radio; quadrature amplitude modulation; radiofrequency interference; spread spectrum communication; white noise; 16-QAM; AWGN; BER performance; Rayleigh channel fading; Reed-Solomon codes; bit-error-probability; co-channel interference; complexity reduction; computer simulation; error and erasure decoding; high-level modulation; land mobile communications; linear interpolation; modified Welch-Berlekamp decoding algorithm; parameter estimation; slow Rayleigh fading; slow frequency hopping; soft-decision-decoding; space diversity; AWGN; Bit error rate; Decoding; Frequency; Interchannel interference; Interpolation; Modulation coding; Parameter estimation; Rayleigh channels; Reed-Solomon codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity

Print_ISBN

0-7803-3336-5

Type

conf

DOI

10.1109/GLOCOM.1996.591956

Filename

591956