Research Of RF Chain & User Selection Algorithm In 5G Mobile Communication System

Nowadays, the 4G system has been deployed widely. The download rate of 4G has reached 100 Mbps, which greatly improves communication rate, compatibility and communication quality, etc. But at the same time, with constant increase of equipment amount and users' demand, there emerges higher expectations towards the performance of mobile communication system.In wireless communication system, more than 90% of power dissipation concentrates on base stations. In order to effectively reduce systematic power dissipation as well as to improve utilization rate, there are extensive studies on resource allocation. However, since several potential technologies in 5G system bear numerous distinctive features with the former ones, the previous methodology in resource allocation appears to be inadequate when applying to 5G system. Therefore, new approaches are expected to be probed into.The thesis focuses on the downlink of wireless communication, takes the resources allocation in mm-Wave channel as the research target. For the purpose of energy saving at base stations,this thesis proposes two algorithm of RF chain & user selection. The main content can be summarized as follow:1.To begin with, the thesis categorizes existed resources allocation algorithm, conducts analysis to their merits and drawbacks respectively, and briefly discusses on the influences that exerted by the new features of 5G system on resources allocation.2. The thesis focuses on RF chain & user selection in mm-Wave channel,combines the previous system structure and the features of mm-Wave channel, proposes a new structure of RF chain & user selection in mm-Wave channel.3. Finally, the thesis proposes two RF chain & user selection algorithms in mm-Wave channel, and has did some complexity analysis and simulation analysis for each algorithm.