基于微基站发射功率的异构蜂窝网络能效优化

doi:10.11772/j.issn.1001-9081.2019071236

计算机应用 ›› 2020, Vol. 40 ›› Issue (4): 1115-1118.DOI: 10.11772/j.issn.1001-9081.2019071236

基于微基站发射功率的异构蜂窝网络能效优化

陈永红^1,2, 郭莉莉¹, 张士兵³, 杨洁⁴

1. 南通大学杏林学院, 江苏南通 226000;
2. 南京邮电大学通信与信息工程学院, 南京 210003;
3. 南通大学信息科学技术学院, 江苏南通 226019;
4. 南京工程学院信息与通信工程学院, 南京 211167

收稿日期:2019-07-18 修回日期:2019-09-03 出版日期:2020-04-10 发布日期:2018-09-11
通讯作者: 杨洁
作者简介:陈永红(1981-),女,江苏铜山人,副教授,博士研究生,主要研究方向:信号处理、协作通信、异构网络;郭莉莉(1986-),女,江苏邳州人,讲师,博士研究生,主要研究方向:无线通信、认知无线电;张士兵(1962-),男,江苏海门人,教授,博士,主要研究方向:现代无线通信、认知无线电;杨洁(1979-),女,江苏宿迁人,副教授,博士,主要研究方向:异构网络、中继协作通信。
基金资助:
国家自然科学基金资助项目（61871241，61701221）；南通市科技计划项目（JC2018127）；江苏省研究生创新计划项目（KYLX16_0662）；南通大学杏林学院自然科学基金资助项目（2018K101）。

Energy efficiency optimization of heterogeneous cellular networks based on transmitting power of pico base station

CHEN Yonghong^1,2, GUO Lili¹, ZHANG Shibing³, YANG Jie⁴

1. Xinglin College, Nantong University, Nantong Jiangsu 226000, China;
2. College of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing Jiangsu 210003, China;
3. School of Information Science and Technology, Nantong University, Nantong Jiangsu 226019, China;
4. School of Information and Communication Engineering, Nanjing Institute of Technology, Nanjing Jiangsu 211167, China

Received:2019-07-18 Revised:2019-09-03 Online:2020-04-10 Published:2018-09-11
Supported by:
This work is partially supported by the National Natural Science Foundation of China (61871241, 61701221), the Science and Technology Program of Nantong (JC2018127), the Postgraduates Innovation Program of Jiangsu Province(KYLX16_0662),the Natural Science Foundation of Nantong University Xinglin College(2018K101).

摘要/Abstract

摘要： 异构蜂窝网络（HetNet）的能量效率近年来引起了广泛的关注，然而，对于宏基站采用非泊松过程系统的能量效率的研究并不多。针对这一问题，研究了两层HetNet的能量效率，其中宏基站的部署采用β-Ginibre点过程（β-GPP）建模。首先，采用一种简单的近似方法分析了两层网络的信干比（SIR）分布；然后，推导出HetNet的覆盖概率、吞吐量和系统的能量效率；最后，提出一种有效的能量效率优化算法，寻找最优的微基站发射功率，使能量效率最大化。仿真结果表明，当β=1，宏基站的分布密度为2×10^-4 m^-2，微基站的分布密度为宏基站分布密度的2倍时，采用所提能量效率优化方案可以使系统能量效率提高约20%。实验结果验证了理论分析的准确性和提出的能效优化算法的有效性。

关键词: 能量效率, 异构蜂窝网络, 微基站, 发射功率, β-Ginibre点过程, 覆盖概率, 平均可达吞吐量

Abstract: Energy efficiency of Heterogeneous cellular Network(HetNet)has attracted wide attention in recent years. However,researches on the energy efficiency of macro base stations using non-Poisson process are not enough. To solve this problem,the energy efficiency of the two-tier HetNet was investigated,in which the deployment of macro base stations was modeled by β-Ginibre Point Process(β-GPP). Firstly,a simple approximation method was used to analyze the Signal to Interference Ratio(SIR)distribution in two-tier HetNet,then the coverage probability,the average achievable throughput and the energy efficiency of the system were derived. Finally,an energy efficiency optimization algorithm was proposed to find the optimal transmitting power of pico base station,maximizing the energy efficiency. The simulation results show that when β=1,the distribution density of macro base station is 2×10^-4 m^-2,and the distribution density of pico base station is 2 times of that of macro base station,the proposed energy efficiency optimization scheme can improve the system energy efficiency by about 20%. The experimental results verify the accuracy of the theoretical analysis and the effectiveness of the proposed energy efficiency optimization algorithm.

Key words: energy efficiency, Heterogeneous cellular Network (HetNet), pico base station, transmitting power, β-Ginibre Point Process(β-GPP), coverage probability, average achievable throughput

中图分类号:

TN925

陈永红, 郭莉莉, 张士兵, 杨洁. 基于微基站发射功率的异构蜂窝网络能效优化[J]. 计算机应用, 2020, 40(4): 1115-1118.

CHEN Yonghong, GUO Lili, ZHANG Shibing, YANG Jie. Energy efficiency optimization of heterogeneous cellular networks based on transmitting power of pico base station[J]. Journal of Computer Applications, 2020, 40(4): 1115-1118.

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基于微基站发射功率的异构蜂窝网络能效优化

Energy efficiency optimization of heterogeneous cellular networks based on transmitting power of pico base station

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