MULTI-CARRIER CODE DIVISION MULTIPLE ACCESS (CDMA): AN OVERVIEW

Abstract

This paper offers a summary of the development of a modern multiple access technique called the Multicarrier Code Division Multiple Access (MC-CDMA). We look at the basic techniques of frequency division multiple access (FDMA) and time division multiple access (TDMA) and describe the two orthogonal frequency division multiplexing (OFDM) and direct sequence CDMA (DS-CDMA) schemes, which contributed to the merger of MC-CDMA. Finally, a contrast is made between the three proposed MC-CDMA techniques and their predecessor DS-CDMA, and the MC-CDMA dominance is seen when serving multiple users via the Bit Error Rate (BER) Vs Signal to Noise Ratio (SNR) simulation graphs for MC-CDMA and OS-CDMA.