摘要
为满足下一代移动通信技术多样化的网络优化需求,设计了不同优化目标的无线网络资源虚拟化映射方案,并通过仿真验证和对比分析各方案在不同网络负载水平下的性能表现。结果表明,追求网络总功率最小化、以节能为目标的优化方案适用于网络整体负载水平低,系统中有较多空闲基站的场景;追求用户总吞吐量、频谱利用率等同类目标最大化的面向无线资源的方案适用于网络处于中低水平负载的场景;追求用户满意度的面向用户方案对抗负载变化的能力较强,适用于重负载场景或负载水平快速波动的场景。映射方案的本质是物理资源在用户总吞吐量、网络总功率、用户满意度3个方面的相互置换,寻找各场景适合的优化目标,其实质是寻找各场景中转换效率最高的方案。
To meet the requirements of diversified network optimization for the next generation mobile communication technology, this paper provided resource virtualization mapping schemes of wireless network with different optimization objectives, and compared their performances under different network loads by simulation. The results show that the optimization scheme aiming at energy saving is suitable for the light load scenario for system withmany idle base stations.The wireless resource oriented scheme, which aims to maximize the total throughput and spectrum utilization of users, is suitable for the scenario where the network has medium or low loads.The user satisfaction-oriented scheme has a better robustness to load variation and it is suitable for heavy load scenarios.The essence of the mapping scheme is the mutual replacement of physical resources in aspects of total user throughput, total network power and user satisfaction to find the optimal target suitable for each scenario, which means finding the scheme with the highest conversion efficiency in each scenario.
作者
朱晨
ZHU Chen(School of Optoelectronic&Communication Engineering,Xiamen University of Technology,Xiamen 361024,China)
出处
《厦门理工学院学报》
2019年第1期35-40,共6页
Journal of Xiamen University of Technology
基金
福建省中青年教师教育科研项目(JT180430)
厦门理工学院高层次人才项目(YKJ18006R)
关键词
无线通信
无线资源管理
虚拟化映射
性能比较
仿真
wireless network
resource virtualization
virtual network mapping
performance comparison
simulation
