MULTI-USER MIMO WIRELESS COMMUNICATION METHOD AND MULTI-USER MIMO WIRELESS COMMUNICATION DEVICE

摘要

A communication speed close to a theoretical limit is achieved without increase in calculation amount and increase in overhead on protocol. In a multi-user MIMO wireless communication system, a reception weight matrix is decided according to a channel matrix, the channel matrix is updated with the product of the reception weight matrix and the channel matrix, a transmission signal is generated by a ZF-DPC method according to the updated channel matrix and transmitted, and a reception signal is multiplied by the reception weight matrix and a DPC decoding is performed. One method for deciding the reception weight matrix is a method in which a conjugate transposed matrix of a left singular matrix obtained when a singular value decomposition of the channel matrix is performed is used as the reception weight matrix.