INVESTIGATION AND IMPLEMENTATION IN ORTHOGONAL DIVISION MULTIPLE ACCES AND SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS

Abstract

It is very challenging to design an efficient wireless communication system. It is becauseof many factors, affecting the performance of a typical wireless communication system. Orthogonal Division Multiple Access (OFDMA) is well utilized for achieving high spectral efficiency in communication systems. Single Carrier Frequency Division Multiple Access (SC-FDMA) was recently introduced for uplink multiple access scheme. The multiple access schemes in an advanced mobile radio system have to meet the challenging requirements, such as high throughput, good robustness, low Bit Error Rate (BER), high spectral efficiency, low delays, low computational complexity, low Peak to Average Power Ratio (PAPR) and low error probability. Therefore, this thesis focuses on investigate and implement the two multiple access techniques (SC-FDMA and OFDMA) with adaptive modulation techniques BPSK, QPSK, 16-QAM and 64-QAM.