Preprocessing method for restraining cross-polarization interference based on inclined projection

作者: Lou Chenggui , Zhang Qinyu , Jiao Jian , Cao Bin , Wu Shaohua

DOI:

关键词: Interference (communication)Rayleigh fadingDiversity gainMIMOAlgorithmChannel state informationMultiplexingComputer scienceRician fadingCommunication channel

摘要: The invention provides a preprocessing method for restraining cross-polarization interference based on inclined projection. comprises the steps of A, determining channel state information at transmitting terminal; B, building an projection operator corresponding to co-polarized channels according in step A; C, sent signal by using operator, and eliminating component; D, sending preprocessed information. In large-scale antenna application scene, number antennas base station is large, terminal may be unable completely acquire or signaling overhead excessive complex calculation amount, but can restrained pre-coding treatment provided invention, high multiplexing gain achieved under premise ensuring diversity gain. According symbol error rate (SER) performance whole dual-polarized MIMO system no matter Rayleigh fading Rician significantly enhanced.