Signal Transmission Method Using CDM Against The Effect Of Channel Estimation Error in Transmit Diversity System

摘要

in a multiple antenna system using transmission diversity to reduce the influence of the channel prediction error code division multiplexing (CDM; Cdoe Division Multiplexing) scheme to initiate a signal transmission method . That is, in the method of transmitting a signal from a transmitter using a plurality of antennas , by using a code according to a predetermined spreading matrix and code division multiplexing the input symbols , a code division multiplexed symbols in this way according to the Alamouti (Alamouti) method but transmitted via the plurality of antennas , wherein the predetermined error diffusion matrix used is the channel estimation (Channel Estimation Error) a first component and a second component transmission signal is set to have a phase that is orthogonal to one another to configure the interference caused by to disclose .