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

R Alihemmati,A Mehrtash,B Boghrati,G Dadashzadeh,N Hojjat,A.A Shishegar

doi:10.1109/pimrc.2005.1651406

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

R Alihemmati, A Mehrtash + Show 4 more

https://doi.org/10.1109/pimrc.2005.1651406

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Publication Date: Sep 11, 2005

Citations: 15

Affiliation: Iran Telecommunication Research Center, University of Tehran

#Spatio-Temporal Channel Model #OFDM WLANs + Show 8 more

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Abstract

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 IEEE 802.11a 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 5 GHz band. Raw bit-error-rate performance for QPSK/16QAM modulations at LOS and NLOS channel scenarios are evaluated and compared

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