基于并行干扰抵消的UFMC系统信道均衡

被引:3
作者
余翔
高燕妮
段思睿
机构
[1] 重庆邮电大学
关键词
通用滤波多载波; 符号间干扰; 载波间干扰; 迫零均衡; 并行干扰抵消;
D O I
10.19734/j.issn.1001-3695.2018.03.0112
中图分类号
TN929.5 [移动通信];
学科分类号
080402 ; 080904 ; 0810 ; 081001 ;
摘要
通用滤波多载波(UFMC)技术作为5G的一种候选波形,传输中不加循环冗余(CP),多径衰落信道下会产生符号间干扰(ISI)以及子载波间干扰(ICI)。针对该问题,提出一种基于并行干扰抵消的均衡算法。首先,根据分析得到多径信道下UFMC系统干扰数学表达式;其次,在采用迫零均衡后,对可靠区间外的数据,根据剩余干扰表达式,近似重构相邻载波及符号间干扰;最后,对各载波并行地进行迭代干扰抵消。通过仿真实验表明,在多径信道下,该算法能够在一定程度上降低误码率,提高UFMC系统性能。
引用
收藏
页码:2496 / 2499+2503 +2503
页数:5
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