Wireless communication system and method

The invention discloses a wireless communication system and method. Although near field communication (NFC) significantly improves performance due to its unique spherical wave channel model in electromagnetic propagation, its future application in communication still has limitations due to limited communication distance. The present invention studies a cooperative relay NFC and far field communication (FFC) coexistence system with a very large scale array (XL array) in which one far user is outside the Rayleigh distance of a base station (BS) and the scenario from the BS to near half-duplex (HD) relay/user and from near relay/user to far user is NFC. Specifically, a closed expression and an asymptotic expression of the achievable capacity are derived respectively. Besides, simulation and numerical results prove the correctness and superiority of the scheme provided by the invention, which indicates that the capacity improvement of the NFC makes up for the performance loss caused by the half-duplex principle,