Paper Title
Comparative Analysis of BER and PAPR for OFDM, OFDM–CDMA, OFDM-Mc-CDMA & OFDM–IDMA Systems

Abstract
Remote correspondence innovation has been created dependent on investigating new versatile interchanges recurrence groups, sensible utilization of recurrence assets and minimization, compactness, and multifunction's of portable stations. The innovation of remote correspondences with the duplex transmission is one of the quickest growing on the planet today. OFDM-IDMA innovation frames the fundamental stage for the fourth era portable correspondence i.e.4G when performed impeccably. In this paper, we present the reproduced aftereffects of the OFDM framework in presence of blurring impact and noticed the impediment and disadvantages of utilizing it. Paper finishes up by examining the benefits OFDM-IDMA framework in contrast with OFDM-CDMA. Keyword - BER; PAPR; OFDMA; IDMA; CDMA; Mc-CDMA