Faster-than-Nyquist Transmission in SC-FDE System Over Frequency Selective Channel with Concatenated Equalizers

Faster-than-Nyquist Transmission in SC-FDE System Over Frequency Selective Channel with Concatenated Equalizers
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SC-FDE 系统中采用级联均衡器的频率选择通道的比奈奎斯特传输速度更快

DOI:
10.1007/s11277-017-5102-6
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发表时间:
2017-12
影响因子:
2.2
通讯作者:
Yong Bai
Yong Bai
中科院分区:
计算机科学4区
文献类型:
--
作者:
Zhifeng Wang;Yong Bai

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比奈奎斯特(FTN)更快的传输使用相对于符号时间的非正交脉冲,以提高系统容量和频谱效率。单载波频域均衡(SC-FDE)系统是一种在频率选择性信道上对抗符号间干扰(ISI)的有吸引力的传输技术。本文研究了SC-FDE系统在多径频率选择性信道上的FTN传输。设计了传输帧结构,提出了一种采用两级联均衡器的接收方案,分别对抗FTN引起的码间干扰和信道引起的码间干扰。仿真结果表明,与在接收端只有一个均衡器的收发信机相比,该收发信机的误码率性能有所改善。
Faster-than-Nyquist (FTN) transmission uses non-orthogonal pulses with respect to symbol time for improving system capacity and spectral efficiency. The Single Carrier Frequency-Domain Equalization (SC-FDE) system is an attractive transmission technique to combat the Inter-Symbol-Interference (ISI) over frequency selective channel. In this paper, we investigate the FTN transmission in SC-FDE system over the multipath frequency selective channel. We design the transmission frame structure, and propose a receiving scheme with two concatenated equalizers to combat FTN-induced ISI and channel-induced ISI, respectively. The simulation results demonstrate that the Bit Error Rate performance can be improved with our proposed transceiver than that with just one equalizer at the receiver.
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