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Performance of MIMO VBLAST-OFDM in Ka-Band

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Author(s): Souhila Ferouani | G. Abdellaoui | F. Debbat | F. T. Bendimerad

Journal: International Journal of Computer Science Issues
ISSN 1694-0784

Volume: 8;
Issue: 5;
Start page: 291;
Date: 2011;
Original page

Keywords: MIMO Systems | Ka band | OFDM Modulation | Satellite Transmission. | IJCSI

ABSTRACT
Technological advances have allowed the use of Ka-band for transmission in 30 GHz uplink and 20 GHz at downlink. The use of Ka-band has advantages over lower frequency bands; it allows a wider bandwidth and therefore a greater flow to pass. In addition, multibeams technology allows a wide reuse frequency, thereby reducing significantly the cost of the spectrum. In this Ka-band (20-30 GHz), quality of service can be degraded by the effects of effects of propagation through the atmosphere. We have proposed in this paper the MIMO OFDM-VBLAST technique for Ka-band application to improve performance. The simulation is based on the study of effect of the channel attenuation (rain and gas) in the Ka-band signal. The simulation results show the importance of using our proposal, where performance is determined in terms of bit error rate BER.

Tango Jona
Tangokurs Rapperswil-Jona

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