LTE网络载波聚合技术的仿真及应用

Simulation and Application of LTE Network Carrier Aggregation Technology

载波聚合技术是传统多载波技术的发展,是LTE-A系统的关键技术。载波聚合是通过提高带宽的方法,从而提高信息传送速率。本文使用载波聚合技术的小区,不会因为信道误码率而导致信息上传和下载受到影响。通过观测应用在具体地点之后上传和下载提升变化情况,利用MATLAB软件仿真观测出速率提升过程中误码率的变化,最后得到实验数据分析速率变化情况。实验结果表明,当采用载波聚合后,相邻载波间引起的衰落是不会影响载波聚合速率提升变化,与传统的技术相比,上传速率提升了约70%,下载速率提高了约90%。

Carrier aggregation technology is the development of traditional multi-carrier technology and is the key technology of LTE-A system.Carrier aggregation is a method to improve the information transfer rate by increasing the bandwidth.Cells using carrier aggregation technology in this article will not be affected by the channel s bit error rate,which will affect the upload and download of information.By observing the application and uploading and downloading the change in the specific location,the MATLAB software was used to simulate the change in the bit error rate during the rate increase,and finally the experimental data was used to analyze the rate change.The experimental results show that when carrier aggregation is used,the fading caused by adjacent carriers can not affect the CA rate increase.Compared to traditional technologies,the upload rate has increased by about 70%and the download rate has increased by about 90%.