数据采集与处理2017，Vol.32Issue(1)：86-94,9.DOI:10.16337/j.1004-9037.2017.01.010
一种多小区多用户能效波束赋形分层优化算法
Energy Efficient Beamforming Layered Optimization Algorithm for Multiuser in Multicell Systems
摘要
Abstract
Energy-efficient beamforming design for multiuser is investigated in multicell systems to maximize the system energy efficiency subjected to some given quality of service demands and transmit power constraint.The non-convex optimization objective function in fractional form is firstly transformed into an optimization objective function in concave-convex fractional form,and the power allocation is realized by introducing some auxiliary variables and using jointly the fractional programming and the lower complexity convex approximation method.Then the beamforming optimization problem is transformed into a problem of minimizing the transmit power which can be solved with the second-order conic programming method.Numerical results illustrate that the proposed algorithm converges to a stable point within a limited number of iterations.It is also observed that the best spectral efficiency and energy efficiency can be simultaneously achieved by the proposed algorithm at low transmit power region.However,in high transmit power region the proposed algorithm outperforms obviously the traditional spectral efficiency maximization algorithm in terms of energy efficiency.关键词
能效传输/波束赋形/分式规划/凸逼近/二阶锥规划Key words
energy efficient transmission/beamforming/fractional programming/convex approximation/second-order cone programming分类
信息技术与安全科学引用本文复制引用
张敏,何世文,陆莹,李元稳,黄永明,杨绿溪..一种多小区多用户能效波束赋形分层优化算法[J].数据采集与处理,2017,32(1):86-94,9.基金项目
国家科技重大专项(2013ZX03003006-02)资助项目 （2013ZX03003006-02）
国家自然科学基金(61471120,61271018,61372101)资助项目 （61471120,61271018,61372101）
江苏省自然科学基金(BK20130019,BK2011597)资助项目 （BK20130019,BK2011597）
江苏省工业支撑项目(BE2012167)资助项目 （BE2012167）
教育部新世纪优秀人才资助计划(NCET-11-0088)资助项目 （NCET-11-0088）
中兴通讯股份有限公司产学研项目(CON1211090001)资助项目. （CON1211090001）
