Research On Energy Efficient Resource Allocation For Massive Mimo Antenna Cellular Network

With the development of Internet communication,many resource constrained wireless network systems have begun to affect the overall channel capacity,to solve the shortage of resources,we need to put forward efficient resource allocation strategy.Massive MIMO network system is one of the research hotspots of 5G network,and antenna selection improves EE(Energy Efficiency)of communication system.Besides,the life cycle of mobile terminal is prolonged by charging the mobile device with WPT(Wireless Power Transfer).In considering the channel estimation of the case,corresponding system channel throughout formula and analysis are conducted.On the basis of the channel throughout,we further derive the formula of EE,and put forward the EE analysis of system under different cases.The main contents are as follows:Firstly,an energy efficient resource allocation algorithm based on WPT is proposed by considering the single user Massive MIMO network.Considering the imperfection of the channel,the system channel throughput and EE formula are derived,and a resource allocation algorithm for single user Massive MIMO network is formed.The main goal of this algorithm is to optimize the system EE,using two time slot protocol,antenna selection technique and beam forming technology.Finally,the optimal transmit power of the base station is obtained by the KKT conditions.Secondly,considering the multiuser Massive MIMO network,an efficient resource allocation algorithm of EE is proposed,which extends the application scope to the multiuser.The system EE is still the main objective of the algorithm optimization,jointly considering the WPT,two time slot protocol,antenna selection,beamforming and multiuser interference,the minimum mean square error estimation.Finally through the KKT conditions of the Lagrangian,the optimal transmit power of multiuser Massive MIMO networks is acquired by base station.Finally,an energy efficient resource allocation algorithm based on ADMM(Alternating Direction Method of Multipliers)is proposed,which is based on the multicell Massive MIMO OFDMA(Orthogonal Frequency Division Multiple Access)network.In the considered system,the base station in the downlink charges the users WPT,the users in the uplink transmit data to the base station.In the process of EE optimization,the two time slot protocol,antenna selection,subcarrier allocation and beamforming are adopted to improve the system EE.Due to the high complexity of the distributed multicell EE optimization,we use the ADMM algorithm to solve the optimization problem.