• Title/Summary/Keyword: Extended H Infinity Filter (EHIF)

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Performance Comparison in Estimating the Number of Competing Terminals in IEEE 802.11 Networks (Kalman vs. H Infinity Filter) (IEEE 802.11 시스템에서 경쟁 터미널 수 추정기법 성능분석 (칼만필터 vs. H Infinity Filter))

  • Kim, Taejin;Lim, Jaechan;Hong, Daehyoung
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37A no.11
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    • pp.1001-1011
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    • 2012
  • In this paper, the effects to system performance are evaluated in IEEE 802.11 system when the number of competing terminals are estimated and reflected to the system. The IEEE 802.11 system uses DCF (Distributed Coordination Function) for the multiple access method, and the system throughput performance depends on the accuracy of the estimated number of competing terminals. We propose extended H infinity filter (EHIF) approach which does not require the noise information for estimating the number of competing terminals. Simulation results show that EHIF outperforms the extended Kalman filter in both saturated and non-saturated network conditions.