Uplink Overloaded MU-MIMO OFDM Signal Detection Methods using Convex Optimization

This paper proposes a low latency and low complexity signal detection method for overloaded MU-MIMO OFDM (Multi-User Multi-Input Multi-Output) signals using a convex optimization approach for uplink IoT (Internet of Things) environments, in which there are a large number of IoT terminals and a base station having smaller number of antennas than that of the terminals. Simulation results demonstrate the validity of the proposed signal detection method.