Skip to Main Content
Multicarrier modulations such as orthogonal frequency division multiplexing (OFDM) and multicarrier code division multiple access (MC-CDMA) systems are of great interest for future mobile communications. In order to provide transmit and receive diversity, we consider MC-CDMA systems equipped with multiple transmit antennas and multiple receive antennas (MIMO) where some space-time (ST) coded transmission schemes are applied. In this paper, we will study the performance of MC-CDMA systems with different coding rates in Nakagami-m fading channels which have been found to be a very good fitting for the mobile radio channel. In case of two transmitting antennas, we will use Alamouti codes while in case of 3 or 4 antennas, we will use codes provided by Vucetic and Ganesan. We will also try to find the optimum number of transmitting antennas in different channel conditions.
Radio Science Conference, 2009. NRSC 2009. National
Date of Conference: 17-19 March 2009