A MIMO approach for performance improvements of OFDM-CDMA system with pilot tone

Author

Veljovic, Zoran ; Urosevic, Ugljesa ; Simunic, D.

Author_Institution

Fac. of Electr. Eng., Univ. of Montenegro, Podgorica, Montenegro

fYear

2013

fDate

1-4 July 2013

Firstpage

489

Lastpage

493

Abstract

In this paper, MIMO OFDM-CDMA downlink scheme is proposed as a solution for performance improvements of the OFDM-CDMA downlink system with pilot tone and threshold detection combining (optimum TDC). The new presented system with MIMO included uses space-time block coding applied to two, three and four transmit antennas. BER (Bit Error Rate) performance in the case of Ricean frequency selective fading is evaluated for the original system as well as for the one with MIMO included. For that reason an adequate simulation model is developed. The results show that the proposed system significantly outperforms OFDM-CDMA system with pilot tone.

Keywords

MIMO communication; OFDM modulation; code division multiple access; error statistics; fading; radio links; BER; MIMO OFDM-CDMA downlink scheme; MIMO approach; bit error rate performance; optimum TDC; performance improvements; pilot tone; space time block coding; threshold detection; transmit antennas; Bit error rate; Doppler effect; Downlink; MIMO; OFDM; Receiving antennas; Transmitting antennas; BER; CDMA; MIMO; OFDM;

fLanguage

English

Publisher

ieee

Conference_Titel

EUROCON, 2013 IEEE

Conference_Location

Zagreb

Print_ISBN

978-1-4673-2230-0

Type

conf

DOI

10.1109/EUROCON.2013.6625026

Filename

6625026