Distributed Energy Saving Mechanism Based on CoMP in LTE-A System

• Published in: China communications Vol. 13; no. 7; pp. 39 - 47
• Main Author: Fei Zheng Wenjing Li Luoming Meng Peng Yu Lei Peng
• Format: Journal Article
• Language: English
• Published: China Institute of Communications 01.07.2016; State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876,China%Electronics and Information Engineering Faculty, Jinggangshan University, Jian, Jiangxi Province, 343009,China
• Subjects: Clustering algorithms; CoMP; distributed energy-saving mechanism; energy-saving rate; equivalent cell principle; Interference; LTE-A; Mathematical model; MATLAB; Optimization; Planning; Quality of service; Signal to noise ratio; 休眠细胞; 分布式; 电池原理; 系统; 网络覆盖; 联合处理; 节能机制; energy-saving rate; distributed energy-saving mechanism; equivalent cell principle; LTE-A; CoMP
• ISSN: 1673-5447
• DOI: 10.1109/CC.2016.7559074

To reduce the energy consumption of the LTE-A system,a distributed energy-saving mechanism based on Co MP（Co MPDESM） is proposed to solve the inadequate coverage problem under the dormant cells.First,the network is divided into clusters based on the equivalent cell principle.Then,we transfer global optimization into a group of subproblems.Second,a joint processing-based cooperative cell selection model is constructed to determine cooperative cells and dormant cells.Third,the compensative cells with a determined threshold are selected to control users＇ access.Finally,a simulation is implemented in Matlab.Results show that the energy-saving rate can reach 36.4% and that the mechanism meets the network coverage requirement.Thus,joint processing can be effectively applied in an energy saving mechanism and used to improve the network performance of edge users without increasing transmission power.