Performance Analysis of SIMO-HPO-CDSK Chaotic Communication Scheme Based on Rayleigh Fading Channels
A single input multiple output(SIMO)architecture for the High-Data-Rate PO-CDSK(HPO-CDSK)system is proposed.By employing multiple antennas at the receiver end,SIMO structure can obtain a diversity gain.Two bits information occupies the same time slot and modulated by the orthogonal carrier,a high rate can be obtained with-out intra-signal interference.The theoretical BER(bit error rate)expression and simulations are performed based on a Rayleigh fading channel.Results show that:the BER of SIMO-HPO-CDSK decreases with the increase in the number of receiver antennas;due to no ISI(inter symbol interference)component and SIMO architecture,the proposed SI-MO-HPO-CDSK architecture has an outstanding BER performance in contrast to those of DCSK(high-efficiency-DC-SK),CDSK and High-Efficiency DCSK(HE-DCSK);because two bits transmit in the same time slot,compared with our system's PO-CDSK(phase-orthogonality CDSK),our spectral efficiency is double.
single input multiple outputHPO-CDSKRayleigh fading channel
NETL
NSTL
万方数据
