Protection tradeoffs against partial-band and multiple-access interference in frequency-hopping networks

  • Authors:
  • Don Torrieri

  • Affiliations:
  • U.S. Army Research Laboratory, Adelphi, MD

  • Venue:
  • MILCOM'03 Proceedings of the 2003 IEEE conference on Military communications - Volume II
  • Year:
  • 2003

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Abstract

Error-correcting codes designed to suppress partial-band interference in frequency-hopping networks exploit the nonbinary symbols of MFSK modulation. However, binary symbols allow more frequency channels and, hence, are more effective against both multiple-access interference and worstcase multitone jamming. It is shown that if the system latency and computational complexity of turbo codes cannot be accommodated, then there is a tradeoff in the choice of the modulation. The more one chooses to protect against partial-band interference, the less the protection against multiple-access interference and multilone jamming.