摘要
针对当前射频频谱资源日益紧张、大带宽连续频谱稀缺的问题,提出了一种基于带宽压缩的载波聚合方案。在OFDM载波聚合技术的基础上,利用改进的非正交高效频谱频分复用调制技术结合载波聚合的方法,以提高通信系统的频谱利用率为目的。理论分析和仿真结果表明,在给定带宽的情况下基于带宽压缩的载波聚合技术可以聚合尽可能多的载波单元,并且是以尽可能小的误码率损失获得较高的频谱效率。
In order to solve the problem that the radio spectrum resources become tense increasingly and the scarcity of wideband spectrum resources,a bandwidth compressed carrier aggregation scheme is given.The scheme is achieved based on CA-OFDM in order to improve spectrum efficiency,with the use of the spectrally efficient frequency division multiplexing combined with the bandwidth compression technique.Theoretical analysis and simulation results show that more CCs can be aggregated in a given bandwidth by using bandwidth compressed carrier aggregation techniques,and the significant spectral efficiency improvement is achieved with the smallest bit error rate loss.
出处
《无线电工程》
2017年第10期30-33,共4页
Radio Engineering
