Downlink energy efficiency modeling and optimization with backhaul awareness and interference price in ultra cellular HetNet

作     者：Li Bo Sun Xuehong Li Chunshu Xue Kaiping Zhang Xiaoguang 

作者机构：Ningxia Key Laboratory of Intelligent Sensing for Desert InformationNingxia UniversityYinchuan 750021China Department of Electronic Engineering and Information ScienceUniversity of Science and Technology of ChinaHefei 230026China Academy of Opto-ElectronicsChinese Academy of SciencesBeijing 100080China 

出 版 物：《The Journal of China Universities of Posts and Telecommunications》 (中国邮电高校学报（英文版）)

年 卷 期：2019年第26卷第2期

页      面：67-81页

核心收录：

学科分类：0810[工学-信息与通信工程] 1205[管理学-图书情报与档案管理] 0809[工学-电子科学与技术（可授工学、理学学位）] 0839[工学-网络空间安全] 08[工学] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the Science Research Project of Higher Education of Ningxia(NGY2018013) the Ningxia Natural Science Foundation(2019AAC03072) the National Natural Science Foundation of China(61301145) 

主　　题：ultra cellular energy efficiency optimization backhaul link interference price 

摘      要：The cellular heterogeneous network(HetNet) with ultra dense small cells is called ultra cellular *** energy efficiency for this network is very important for future green wireless *** data rates and power consumptions for three parts(i.e.,macro cells,small cells,and mixed backhaul links) in ultra cellular HetNet are jointly formulated to model downlink energy efficiency considering the active base stations(BSs) and inactive ***,in order to decrease the downlink co-channel interference,the interference price functions are also jointly set up for the three parts in ultra cellular ***,energy efficiency optimization iterative algorithm scheme using the fractional programming and Lagrangian multiplier with constraints for density of ultra dense small cells and fraction of mixed backhaul links is presented with interference *** convergence and computation complexity are also proved in this *** numerical simulations finally demonstrate convergence behavior of the proposed *** comparison,some conclusion can be *** energy efficiency of system is lower as the density of small cell is *** effect on maximizing energy efficiency with interference price outperforms that without interference *** the energy efficiency increases as the fraction of mixed backhaul links is higher because of more power consumption in the microwave backhaul links.