Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Threshold level analysis of the FFH-MA system using noncoherent FSK modulation under the presence of frequency and timing offsets

주파수와 타이밍 옵셋에 의한 빠른 주파수 호핑 시스템의 임계값 분석

  • Jeungmin Joo (Dept. of Information and Communication, Kwangju institute of Science and Tech.) ;
  • Yeomin Yoon (Dept. of Information and Communication, Kwangju institute of Science and Tech.) ;
  • Miheung Choe (Dept. of Information and Communication, Kwangju institute of Science and Tech.) ;
  • Lee, Kwangeog (Agency for Defense Development) ;
  • Kim, Kiseon (Dept. of Information and Communication, Kwangju institute of Science and Tech.)
  • Published : 2003.07.01
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Abstract

Under the prsence of the frequency and timing offset, we evaluate the BER performance of the FFH-MA system using noncoherent M-ary FSK modulation in the Rayleigh fading channel. The numerical resuts show that while the frequency and timing offset increases at a given SNR, the BER is severely degraded. The threshold level used in the envelope detector increases with the increase of the frequency and timing offset, and with the proper selection of the threshold level, the BER can be improved under the presence of such offsets.

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