LTE-Advanced异构中继网络研究  

Research on LTE-Advanced heterogeneous relay network

作　　者：刘皎 韩美林 LIU Jiao;HAN Mei-lin(Electronic Information and Electrical College of Engineering,Shangluo University, Shangluo 726000, Shaanxi Province, China)

机构地区：[1]商洛学院电子信息与电气工程学院

出　　处：《信息技术》2019年第6期26-30,共5页Information Technology

基　　金：2018年第一批产学合作协同育人项目(201801082072);商洛学院科研基金项目(16SKY006);商洛学院2018年根植地方行动计划立项资助项目(gz201834)

摘　　要：文中提出一种LTE-Advanced异构中继网络架构,并设计合理的中继接入/退出机制,确保用户通过中继传输获得通信质量的改善;提出了中继传输用户的切换机制,有效避免切换过程中用户数据在回程链路上重复转发的问题,大大减少了中继切换过程中的网络延时;最后,结合Full Buffer业务模型对该中继系统用Opnet进行仿真分析,证明在加入中继并合理设置中继接入控制阈值后有助于充分发挥中继系统的作用,使系统性能得到极大改善。An LTE-Advanced heterogeneous relay network architecture is proposed,and a reasonable relay access/exit mechanism is designed to ensure the improvement of communication quality through relay transmission. The handover mechanism of relay transmission users is proposed, which can effectively avoid the problem of repeated forwarding of user data on the return link during handover,and greatly reduce the network delay in the process of relay handover. Finally,the simulation analysis of the relay system using Opnet combined with Full Buffer service model proves that it is helpful to give full play to the performance of the relay system after adding relay and setting the relay access control threshold reasonably. With this method,the system performance is greatly improved.

关 键 词：中继网 中继接入 中继切换 吞吐量 

分 类 号：TN915.02[电子电信—通信与信息系统]