Full-Rate MIMO Techniques for Next-Generation Wireless Networks

Next-generation wireless network systems are foreseen to provide high peak spectral efficiencies (as much as 15 bps/Hz in the downlink and 6.75 bps/Hz in the uplink under ideal conditions) and high mobility (up to 120km/h). Due to such demanding requirements, the need for efficient MIMO signalling schemes and corresponding efficient receiver architectures becomes mandatory. In this work, we investigate a number of alternative full-rate MIMO transmission schemes with different receiver structures. Beyond a brief description of the proposed schemes, simulation results are presented, where the test parameters and the performance requirements are chosen, whenever possible, in compliance with the IEEE 802.16m Evaluation Methodology Document (EMD). Such simulation results assess the performance of the proposed schemes in a WiMAX scenario and allow comparing the different solutions on a foot of parity.