In distributed MIMO systems

because antennas are deployed separately

it is hard to guarantee that signals of all antennas reach destination node at the same time

so for the STBC encoding system

orthogonality of system can not be guaranteed

which seriously affects performance of system. To anti-relative delay between antennas

an algorithm is designed

by processing datas through IFFT / FFT and plus cyclic prefix

the system has certain ability of anti-relative delay between antennas. Simulation results show that as long as the delay is less than the length of cyclic prefix

STBC code can be correctly decoded

performance of the algorithm is almost the same as the ideal synchronization situation.