Load Distribution of Base Stations in User-Centric Heterogeneous UDN  

作　　者：Xuanli Wu Xu Chen Ziyi Xie Wei Wu Tianzhu Pan Yong Li 

机构地区：[1]Communication Research Center,Harbin Institute of Technology,Harbin 150006,China [2]Science and Technology on Communication Networks Laboratory,Shijiazhuang 130100,China [3]54th Research Institute of China Electronics Technology Corporation,Shijiazhuang 130100,China

出　　处：《China Communications》2023年第9期227-234,共8页中国通信（英文版）

基　　金：supported by National Natural Science Foundation of China (No. 61971161);Foundation of Science and Technology on Communication Networks Laboratory (No.6142104190410);Heilongjiang Touyan Team(No. HITTY20190009)

摘　　要：In ultra-dense networks(UDN),multiple association can be regarded as a user-centric pattern in which a user can be served by multiple base stations(BSs).The data rate and quality of service can be improved.However,BSs in user-centric paradigm are required to serve more users due to this multiple association scheme.The improvement of system performance may be limited by the improving load of BSs.In this letter,we develope an analytical framework for the load distribution of BSs in heterogeneous user-centric UDN.Based on open loop power control(OLPC),a user-centric scheme is considered in which the clustered serving BSs can provide given signal to interference plus noise ratio(SINR)for any typical user.As for any BS in different tiers,by leveraging stochastic geometry,we derive the Probability Mass Function(PMF)of the number of the served users,the Cumulative Distribution Function(CDF)of total power consumption,and the CDF bounds of downlink sum data rate.The accuracy of the theoretical analysis is validated by numerical simulations,and the effect the system parameters on the load of BSs is also presented.

关 键 词：heterogeneous ultra-dense network load distribution open loop power control stochastic geometry user-centric 

分 类 号：TN929.5[电子电信—通信与信息系统]