earticle

영어

The large-scale antenna has the advantage of application is strong, it can greatly improve the average throughput of the system, but also can save transmission power, becoming one of the key technologies of the fifth generation mobile communications. However, in FDD system, the sender configure a large number of antennas, the access of channel state information has become a problem to achieve; for this problem, we propose a bit allocation scheme, this scheme is based on jointly zero forcing beamforming, using random vector quantization method, and getting a better performance, the success of the application of traditional finite feedback technology to large-scale antenna system, the simulation results show the effectiveness and correctness of the proposed algorithm.