Title :
Interference mitigation in frequency-hopped spread-spectrum systems
Author :
Worthen, Andrew ; Stark, Wayne
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
In this paper we explore the error probability of different coding schemes in a frequency-hopped spread-spectrum communication systems subject to partial-band interference and a system subject to Rayleigh fading. The interplay between block length of the code and channel memory is quantified. We show that there is an optimal memory length that maximizes performance. At low signal-to-noise ratios (or close to capacity) large memory is better while at large signal-to-noise ratio smaller memory is optimum
Keywords :
Rayleigh channels; decoding; error statistics; frequency hop communication; interference suppression; random codes; spread spectrum communication; Rayleigh fading; block length; channel memory; error probability; frequency-hopped spread-spectrum communication systems; hard decision decoding; interference mitigation; low density parity check codes; optimal memory length; partial-band interference; random codes; signal-to-noise ratio; soft decision iterative decoding; Channel estimation; Computer errors; Computer science; Frequency; Interference; Iterative algorithms; Iterative decoding; Parity check codes; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2000 IEEE Sixth International Symposium on
Conference_Location :
Parsippany, NJ
Print_ISBN :
0-7803-6560-7
DOI :
10.1109/ISSSTA.2000.878081
