摘要
针对多小区LTE移动通信系统,考虑用户的最小速率要求,以最大化系统能效为目标,提出了一种迭代式的资源分配算法,通过不断迭代子信道分配和功率控制两个子过程来优化系统能效。针对子信道分配问题,提出了一种基于三种基本模式的子信道调整算法;针对功率控制问题,建立了多小区非合作博弈模型,理论证明了纳什均衡点的存在性,并设计了算法收敛于该纳什均衡点。仿真结果表明,与多小区最大化系统吞吐量算法相比,提出的算法获得了明显的能效增益,同时也达到了较好的系统吞吐量,尤其在强干扰环境下该算法的优势更加明显。
This paper proposed an algorithm for resource allocation under Qo S constraint with the objective of maximizing system energy-efficiency in multi-cell LTE system. It was decomposed into sub-channel adaption and power control,and solved iteratively. The sub-channel adaption algorithm was based on three basic models. It developed an non-cooperative game for energy-efficient power control,and proved the existence of equilibrium. It also proposed an algorithm to solve the equilibrium.Simulation results demonstrate that the performance of this algorithm is more energy-efficient and result in most throughput. The performance is better in stronger interference.
出处
《计算机应用研究》
CSCD
北大核心
2015年第4期1161-1165,共5页
Application Research of Computers
基金
国家"863"计划资助项目(2012AA011402)
新世纪优秀人才支持计划资助项目(NCET-10-0294)
关键词
多小区
能效
子信道调整
功率控制
非合作博弈论
multi-cell
energy-efficiency
sub-channel adaption
power control
non-cooperative game
