摘要
由于分层异构网中小蜂窝用户和D2D (device-to-device)用户共享宏蜂窝用户的频谱资源,因此会产生严重的同层和跨层干扰。为减少系统间干扰,提升频谱利用率,提出一种具有动态配额和冲突域的一对多匹配算法进行资源分配,在小蜂窝和D2D高密度部署场景下,允许多个用户复用相同的宏蜂窝用户资源。仿真结果表明,所提算法能够有效提升频谱利用率和系统吞吐量,降低计算复杂度。
The small cell users and D2D(device-to-device)users share spectrum resources of macrocell users in hierarchical hete-rogeneous networks,hence,serious same layer interference and cross-layer interference occur.To reduce the system interfe-rence and improve the spectrum utilization,a one-to-many matching algorithm with dynamic quotas and conflict domains was proposed to allocate resource.In a high-density deployment scenario with small cells and D2D,multiple users were allowed to reuse the same resources of macrocell users.Simulation results show that the proposed algorithm can effectively improve the spectral utilization,increase the system throughput and reduce the computational complexity.
作者
袁泉
赵瑞雪
颜飙
YUAN Quan;ZHAO Rui-xue;YAN Biao(Research Center of New Telecommunication Technology Applications,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Chongqing Information Technology Designing Limited Company,Chongqing 400012,China)
出处
《计算机工程与设计》
北大核心
2019年第2期341-345,363,共6页
Computer Engineering and Design
关键词
异构网
小蜂窝
终端直通
资源分配
一对多匹配
heterogeneous network
small cell
device-to-device
resource allocation
one-to-many matching
