Performance evaluation of two-dimensional quasi orthogonal complete complementary codes in fading channels

Abstract

A novel MC-CDMA architecture based on complete complementary codes (CCC) was proposed. The benefits of using CCC for both time and frequency domain are known and include features like MAI free transmission, easy rate matching using the unique offset stacked spreading (shift-and-add modulation), low peak-to-average power ratio and low dynamic range of the signal. Two-dimensional (time-frequency) spreading received some attention for its inherent ability to combat negative effects in hostile mobile radio channels. The performance of 2D-MC-CDMA system based on two-dimensional orthogonal CCC (2D-OCCC) in a fading channel was already examined. In this paper we evaluate the performance of two-dimensional quasi orthogonal CCC (2D-QOCCC) for different equalization methods. The system performance is evaluated using an uncorrelated fading channel model