In this paper, a precise method for calculating the bit-error rate (BER) of a discrete cosine transform (DCT)-based orthogonal frequency-division multiplexing (OFDM) system on additive white Gaussian noise (AWGN) channels for a Multicarrier-CDMA (MCCDMA) is derived and its BER performance will be compared with the FFT based MC-CDMA. These accurate results are used to examine and compare the BER...

Orthogonal Frequency Division Multiplexing (OFDM) and Code Division Multiple Access (CDMA) are combined to benefit Multi-carrier (MC) Code Division Multiple Access (MC-CDMA) systems. High data rate wireless systems opt for these systems. A large amount of challenges still exist due to the random nature of wireless channels. In this paper, using the basic principles of MCCDMA technique, we emplo...

In this paper, a comprehensive performance evaluative study has been made on a secured MIMO MCCDMA wireless communication system with implementation of Minimum Mean Square Error (MMSE) and ZeroForcing (ZF) Linear channel equalization schemes. The 4G compatible system deploys two channel encoding schemes(1/2-rated Convolutional and CRC ) under BPSK,DPSK QPSK and QAM digital modulations. In the p...

In this paper, we consider the error performance for downlink multicarrier code-division multiple access (MCCDMA) system with space-time block codes (STBC) in correlated Rayleigh fading channels. An exact bit error rate (BER) is obtained for the system with maximal ratio combining (MRC) scheme based on the characteristic function (CF) and residue calculation method. Simulation results are also ...

We propose a downlink multiple-input multipleoutput (MIMO) multi-carrier code division multiple access (MCCDMA) system with adaptive beamforming algorithm for smart antennas. The algorithm used in this paper is based on the Least Mean Square (LMS), with pilot channel estimation (PCE) and the zero forcing equalizer (ZFE) in the receiver, requiring reference signal and no knowledge channel. MC-CD...

Multi-carrier code division multiple access (MCCDMA) is method for high speed data rate communication. It skip the problem of inter symbol interference.MC-CDMA too provide spatial diversity, which mitigate the fading. The usage of MC-CDMA can significantly improve the performance of wireless communication system. This paper presents the simulation of MC-CDMA system performance with MSK modulati...

In multicarrier code-division multiple-access (MCCDMA) the total system bandwidth is divided into a number of subbands, where each subband may use direct-sequence (DS) spreading and each subband signal is transmitted using a subcarrier frequency. In this contribution we divide the symbol duration into a number of fractional sub-symbol durations also referred to here as fractions, in a manner an...

The multi-carrier code division multiple access (MCCDMA) is a strong candidate to facilitate multi-user (MU) multi input multi output (MIMO) communication for the current and next generation wireless mobile system. An orthogonal frequency division multiplexing (OFDM) based MCCDMA system with limited feedback channel is considered for reducing channel state information (CSI) feedback load. The r...