Impact of carrier frequency dependent power amplifier behavior on 802.11a WLAN system

Liu J., ARSLAN H., Dunleavy L., Webster A., Paviol J.

Conference Proceedings - 7th European Conference on Wireless Technology, ECWT2004, Amsterdam, Hollanda, 11 - 12 Ekim 2004, ss.289-292 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Amsterdam
  • Basıldığı Ülke: Hollanda
  • Sayfa Sayıları: ss.289-292
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

A revealing new study is presented on the impact of frequency-related performance variation of power amplifiers (PAs) for 802.11a WLAN systems. A look-up table (LUT) model that addresses such, so called, memory effects was developed for an example PA and used to study frequency dependent non-linear effects on WLAN system performance parameters, such as spectral regrowth (e.g. ACPR) and error vector magnitude (EVM). The results show significant frequency-dependent variations in these critical system parameters and underline the importance of memory-effect modeling for PAs used in OFDM WLAN systems.