摘要
以太原路段的高铁无线通信项目为例,对基于5G的高铁无线通信关键技术进行研究,系统采用大规模MIMO-OFDMA资源分配技术,满足无线通信需求;提出一种新的资源分配算法,灵活配置子载波和发射功率资源,在保证公正性的同时,提高无线通信系统的传输速率。研究表明,新的资源分配算法性能优良,在系统传输速率、能效、公正性等方面均表现良好。
Taking the high-speed railway wireless communication project in Taiyuan section as an example,the key technologies of high-speed railway wireless communication based on 5G are studied. The system adopts large-scale MIMO-OFDMA resource allocation technology to meet the wireless communication requirements;A new resource allocation algorithm is proposed, which flexibly configures the subcarrier and transmission power resources to improve the transmission rate of wireless communication systems while ensuring fairness. The research shows that the new resource allocation algorithm has good performance in system transmission rate, energy efficiency, fairness, etc.
作者
李利军
Li Lijun(The Second Engineering Co.,Ltd.of China Railway Construction Electrification Bureau Group,Taiyuan,China)
出处
《科学技术创新》
2023年第3期109-112,共4页
Scientific and Technological Innovation
关键词
5G
高铁
无线通信
资源分配
5G
high-speed rail
wireless communication
resource allocation
