4MORE: An advanced MIMO downlink MC-CDMA system

The IST 4MORE project defines a multicarrier code division multiple access (MC-CDMA) radio system with multiple mobile users and advances this one step towards implementation through the design of a System on Chip (SoC) for a 4G terminal employing multiple antennas, based on MC-CDMA. In this contribution we present results of the simulated downlink scenario, which is the base for the designed demonstrator. We cover different channels, various modulation schemes, coarse time synchronization, carrier frequency offset tracking and finally the effect and countermeasures which are needed for RF impairments. The implemented air interface offers transmitting 5.5 bits/s/Hz over two spatial parallel multiplexed data streams.