摘要
为了解决在信道突变情况下用户传输速率不稳定的问题,提出一种基于UAV用户信道速率变化的动态分组方式。在指定时间段内以固定频率进行动态分组:依据用户的信道速率进行排序,将用户分为多个用户组,根据每个用户组的信道速率按比例进行初步功率分配,再计算每个用户组内NOMA方式下每个用户的功率分配,最后计算出每个用户的传输速率。通过与固定分组方式对比仿真,证明了该方案能有效保证用户传输速率的稳定性并提升整体传输速率。
To solve the problem of unsteady user transmission rate in channel mutation,a dynamic grouping method based on the variation of UAV user channel rate is proposed.The dynamic grouping at a fixed frequency is over a specified period of time.The users are sorted according to the channel rate and divided into multiple user groups,the initial power allocation is carried out according to the channel rate of each user group,then the power allocation of each user in the NOMA mode in each user group is calculated,and the transmission rate of each user is calculated.Compared with the fixed packet method,the simulation results show that the scheme can effectively guarantee the stability of user transmission rate and improve the overall transmission rate.
作者
杨成林
高兴
YANG Chenglin;GAO Xing(School of Electronic and Information Engineering,Wuhan Technical College of Communications,Wuhan 430000,China;FiberHome Telecommunication Technologies Co.,Ltd.,Wuhan 430000,China)
出处
《微型电脑应用》
2023年第6期129-132,共4页
Microcomputer Applications
