Non-Coherent Communications on the Grassmann Manifold

This project aims to develop efficient communication schemes over a non-coherent channel for the multi-user MIMO regime. Non-coherent MIMO communication is gaining renewed interest due to the advent of massive MIMO system. When the transmitter and/or receiver is equipped with a large antenna array, the overhead incurred by the channel estimation may significantly limit the effective throughput, and make it more difficult to acquire channel state information (CSI) for channels that vary rapidly. In non-coherent communications, the channel at the transmitter and receiver is considered unknown, or only some statistical information is assumed to be available