Title :
Antijam capability analysis of RS-coded slow frequency-hopped systems
Author :
Su, Yu.T. ; Jeng, Li-Der
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
2/1/2000 12:00:00 AM
Abstract :
The application of Reed-Solomon codes in slow frequency-hopped systems has been extensively studied. Earlier investigations assumed an infinite interleaving length and considered partial-band noise jammers only. This paper extends previous efforts by analyzing the effect of finite interleaving length and the impact of band multitone jammers. We also explain why two-threshold (2T) erasure-insertion methods (EIM) are needed and examine their performance. Numerical results are presented to compare the effectiveness of the EIM and jammer types and to study the relationships among the hop rate, the interleaver size, and the code rate. The use of 2T-EIM necessitates the estimation of several additional channel and signal parameters. Simple and effective estimation algorithms are provided as well
Keywords :
Reed-Solomon codes; error statistics; frequency hop communication; frequency shift keying; interleaved codes; jamming; parameter estimation; Bayesian methods; MFSK; RS-coded slow frequency-hopped systems; Reed-Solomon codes; antijam capability analysis; band multitone jammers; channel parameter estimation; code rate; codeword error probability; conditional probabilities; estimation algorithms; finite interleaving length; hop rate; infinite interleaving length; interleaver size; partial-band noise jammers; signal parameter estimation; two-threshold erasure-insertion methods; Bayesian methods; Concatenated codes; Decoding; Forward error correction; Frequency diversity; Frequency shift keying; Interleaved codes; Jamming; Protection; Testing;
Journal_Title :
Communications, IEEE Transactions on
