《计算机应用研究》|Application Research of Computers

LTE-A系统中基于QoE能效的无线资源分配算法

QoE-based energy-efficient wireless resource allocation in LTE-A system

免费全文下载 (已被下载 次)  
获取PDF全文
作者 余翔,王宏刚,段思睿
机构 重庆邮电大学 通信与信息工程学院,重庆 400065
统计 摘要被查看 次,已被下载
文章编号 1001-3695(2019)05-044-1490-03
DOI 10.19734/j.issn.1001-3695.2017.12.0766
摘要 针对无线通信网络能耗日益增加和用户体验质量(quality of experience,QoE)难以得到保证的问题,提出一种LTE-A系统中基于QoE能效的资源分配算法。给出了联合优化QoE和能效的数学模型,特别考虑了用户最小QoE要求;根据约束条件提出了一种迭代算法进行用户资源块(resource block,RB)分配,然后利用分数规划的性质并采用凸优化方法求得最优的发射功率来优化目标函数。仿真结果表明,相较现有基于能效的资源分配算法,该算法在提高系统性能的同时有效地保证了用户QoE。
关键词 LTE-A; 体验质量; 能效; 资源分配
基金项目 国家科技重大专项基金资助项目(2015ZX03004004)
本文URL http://www.arocmag.com/article/01-2019-05-044.html
英文标题 QoE-based energy-efficient wireless resource allocation in LTE-A system
作者英文名 Yu Xiang, Wang Honggang, Duan Sirui
机构英文名 School of Telecommunication & Information Engineering,Chongqing University of Posts & Telecommunications,Chongqing 400065,China
英文摘要 In order to decrease the energy consumption of wireless communication system and ensure the user experience quality, this paper proposed a QoE-based energy efficiency resource allocation algorithm for LTE-A system. First, it built a mathematical model for jointly optimizing QoE and energy efficiency, especially considering the minimum QoE requirement of users. Secondly, it proposed an iterative algorithm to allocate user resource blocks(RB) according to the constraints. Then, it also optimized optimal objective function by using the properties of fractional programming and used the convex optimization method to obtain the optimal transmit power. Simulation results show that compared with the existing energy efficiency resource allocation algorithm, the proposed algorithm can effectively guaranteed user's QoE while improving system performance.
英文关键词 LTE-A; quality of experience; energy-efficient; resource allocation
参考文献 查看稿件参考文献
 
收稿日期 2017/12/25
修回日期 2018/2/10
页码 1490-1492,1509
中图分类号 TN929.5;TP301.6
文献标志码 A