Hybrid Pre-coding with Multi-user Mm Wave Massive MIMO
作者单位:北京邮电大学
学位级别:硕士
导师姓名:Songlin Sun
授予年度:2016年
学科分类:0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统]
主 题:Hybrid Pre-coding M-U MIMO Analog Beamforming Digital Beamforming Beam Steering and Low Complexity
摘 要:In the large field of cellular system,the antenna array is the important parameter playing a vital and major *** function of antennas array transmits the signals ***-user MIMO(MU-MIMO)can benefit multiple users such as spatially distributed transmission resources,the cost of processing the signal a bit more *** comparison,conventional or single-user MIMO considers the local multiple dimensions of the antenna *** MIMO algorithm developed to improve MIMO systems where the number of users or connections is more than ***,it is more likely harder to transmit multi users at a certain time on a single path for the reason that of having large interference that originates base station to mobile *** present study is an idea of developing low-complexity hybrid analog to digital pre-coding for the downlink multi-user *** pre-coding is a combination of analog and digital processing and that is inspire by power consumption of complete radio frequency mixed signal *** proposed algorithm is an implementation on hybrid pre-coders at both regions of mm Wave system,pre-coders configure at transmitter region and the combiners configure at the multiple of receivers along with feedback *** performance of this proposed algorithm is consideration in sense of large dimensional managements as well as in single path *** combiners(Analog and Digital pre-coder)selected from the quantized beam forming and beam steering *** and simulation result shows the proposed algorithm techniques offer higher sum rates as compared with analog beamforming only as the interference at downlink is forwarding to decrease when the multi users transmit over the single *** pre-coding algorithm gave better performance than analog beam forming *** rate loss showed the performance of hybrid *** proposed algorithm demonstrated the performance in simulation with the help o