Comparison of the Smart Antenna Architectures for OFDM-WLAN Systems in a Rich Multipath Environment based on a Spatio-Temporal Channel Model

Konferenz: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
11.09.2005 - 14.09.2005 in Berlin, Germany

Tagungsband: PIMRC 2005

Seiten: 5Sprache: EnglischTyp: PDF

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Alihemmati, R.; Shishegar, A. A.; Hojjat, N.; Dadashzadeh, G. (Iran Telecommunication Research Center, Tehran, Iran)
Shishegar, A. A. (Dept. of Electrical Eng., Sharif University of Technology, Tehran, Iran)
Hojjat, N.; Boghrati, B.; Mehrtash, A. (University of Tehran, Tehran, Iran)

The smart antenna technique as a method of improving the physical layer performance of OFDM WLANs is studied. For this purpose, a comparison of the smart antenna architectures for IEEE802.11a WLAN system using pre-FFT and post-FFT array processing with different parameters is represented. Simulations are performed on a new Simulink model for IEEE802.11a system using a spatio-temporal channel modeling which is based on the measured wideband channels in the 5GHz band. Raw bit-error-rate performance for QPSK/16QAM modulations at LOS and NLOS channel scenarios are evaluated and compared.