基于频谱效率提升的FMT系统实现方法

发布时间：2018-03-22 04:04

本文选题：FMT系统　切入点：重叠保留法　出处：《中国科学:信息科学》2017年02期 　论文类型：期刊论文

【摘要】：本文基于快速卷积方案实现滤波多音调制(filtered multi-tone,FMT)系统,可以对子载波的中心频率及宽度进行灵活配置.针对传统FMT系统频谱效率低下的问题,提出以频率点为单位引入频谱重叠的新型FMT系统(overlapped FMT,O-FMT)研究方法.通过实验方法分析了O-FMT系统中重叠因子、频率点重叠点数及滚降因子与系统性能间的关系.仿真结果证明该方法可以同时处理多种波形,并能通过几个参数的最优配置满足多种业务场景对系统运算复杂度、频谱利用率、均方误差等不同的性能需求.
[Abstract]:In this paper, based on the fast convolution scheme, a filtered multi-tone modulation (FMT) system is implemented, which can flexibly configure the center frequency and width of subcarriers. In this paper, a new research method of overlapped FMTO-FMTT system based on frequency points is proposed. The overlap factor in O-FMT system is analyzed by experiment. The simulation results show that this method can deal with multiple waveforms simultaneously, and can satisfy the complexity of various business scenarios through the optimal configuration of several parameters. Spectrum efficiency, mean square error and other performance requirements.
【作者单位】：重庆邮电大学通信与信息工程学院;Department
【基金】：国家科技重大专项(批准号:2016ZX03001010) 重庆市教委科学技术研究项目(批准号:KJ1400437)资助
【分类号】：TN929.5

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