To Improve Performance and Analysis of Multi - Carrier Direct Sequence (MC DS) CDMA with Fading
| Author(s) | : | N.SHASHANK, R.RAMESH BABU |
| Institution | : | JAGRUTHI INSTITUTE OF ENGINEERING TECHNOLOGY |
| Published In | : | Vol. 4, Issue 11 — November 2017 |
| Page No. | : | 1021-1026 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
The performance of an MC DS CDMA wireless communication system over a Rayleigh Fading Channel isanalyzed in the presence of Multiple Access Interference (MAl) and Inter-Carrier Interference (ICI). The Signal toInterference plus Noise Ratio (SINR) is derived in this environment. The analysis is also extended to MC-DS-CDMA systemwith Rake Receiver. The performance results are evaluated numerically in terms of SINR and BER considering severalsystem parameters like number of users, processing gain, number of sub-carriers and number of rake fingers. The resultshows that there are significant deterioration in SINR and BER performance due to fading. Optimum system designparameters are determined from the analytical results for a given performance level.We use band limited spreading waveforms to prevent self-interference, and we evaluate system performance over afrequency selective Rayleigh channel in the presence of partial band interference. There is no interference from the CDMAsignals to the existing microwave systems. Thus, there is no need for either a narrowband suppression filter at the receiver ora notch filter at the transmitter. Simulation results compare system performance with that of a single-carrier RAKE system
N.SHASHANK, R.RAMESH BABU, “To Improve Performance and Analysis of Multi - Carrier Direct Sequence (MC DS) CDMA with Fading”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 11, pp. 1021-1026, November 2017.
