SIGNAL DETECTION IN MC-CDMA SYSTEM USING ELM RECEIVER TO MITIGATE MULTIPLE ACCESS INTERFERENCE AND NON-LINEAR DISTORTION(Article)
Multi-carrier code-division multiple access system support multiple users at the same time over same frequency band. It is a multiple access scheme used in OFDM-based telecommunication systems. Though it is a promising wireless communication technology with high spectral efficiency and system performance, it is prone to multiple access interference (MAI). So, this paper mainly aims to design a MC-CDMA receiver to mitigate MAI. The classical receivers like maximal ratio combining (MRC), equal gain combining (EGC), and minimum mean square error (MMSE) fails to cancel MAI when the MC - CDMA is subjected to non-linearistic degradations. In this case, the neural network (NN) receivers could be a better alternative. The efficiency and effectiveness of the proposed ELM (Extreme Learning Machine) Algorithm based receiver is studied thoroughly and explained in detailed for the MC-CDMA with non-linearistic degradations.
|Journal||ARPN Journal of Engineering and Applied Sciences|
|Publisher||Asian Research Publishing Network|