On Schemes for Multriate Support in DS-CDMA Systems
Wireless Personal Communications: An International Journal
Throughput Analysis of Adaptive Modulated STS-based CDMA System Over Multipath Fading Channel
Wireless Personal Communications: An International Journal
Computers and Electrical Engineering
Performance of broadband multicarrier DS-CDMA using space-time spreading-assisted transmit diversity
IEEE Transactions on Wireless Communications
IEEE Journal on Selected Areas in Communications
Computers and Electrical Engineering
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The throughput enhancement of space-time spreading (STS)-based multicarrier direct sequence code division multiple access (MC DS-CDMA) system is investigated in this paper. Adaptive modulation is performed to improve the data throughput of the system in Rayleigh fading channel. In this contribution, an analytical approach is proposed to compute a new expression for the bit error rate (BER) performance of the STS-based MC DS-CDMA system for QAM data. The other contribution of the paper is deriving a new analytical expression for the throughput enhancement and the BER performance of the adaptive modulated STS-based MC DS-CDMA system over Rayleigh fading channel. The novel expressions presented in this paper bring out the facility of evaluation of the proposed system with no need for more calculations and simulations.