| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless communication system capable of enhancing the signal detection performance, by reducing the setting error of modulo lattice size, in non-linear MIMO communication.SOLUTION: In a mobile terminal performing wireless communication of a signal, modulated by orthogonal frequency division multiplex system, by non-linear MIMO system of vector perturbation, a modulo processing unit 2210 calculates the weighted square sum of the absolute value of propagation path estimate value of a desired wave component after precoding and an inter stream interference component, and then multiplies the square root thereof by the lattice size of constellation expansion used on the transmission side, thus estimating the modulo lattice size (modulo width) and performing modulo operation. |
