Performance Evaluation of MIMO-FTN Signaling Under Multipath Fading Channels

被引:1
|
作者
Chiu, Hao-Tse [1 ]
Saito, Shuhei [1 ]
Suganuma, Hirofumi [1 ]
Kuriyama, Keita [2 ]
Tanaka, Kentaro [2 ]
Hasegawa, Hitoshi [2 ]
Miyagi, Toshifumi [2 ]
Onizawa, Takeshi [2 ]
Maehara, Fumiaki [1 ]
机构
[1] Waseda Univ, Grad Sch Fundamental Sci & Engn, Tokyo 1698555, Japan
[2] NTT Corp, NTT Access Network Serv Syst Labs, Yokosuka 2390847, Japan
关键词
Faster-than-nyquist (FTN) signaling; multiple-input multiple-output (MIMO); fixed-bit transmission; fixed utilized bandwidth; frequency domain equalization (FDE); FASTER;
D O I
10.1109/ACCESS.2023.3306797
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, we investigate the advantages of multiple-input multiple-output (MIMO) faster-than-Nyquist (FTN) signaling under a fixed utilized bandwidth and multipath fading channels. We present derivations of the input-output relationships for MIMO-FTN systems and decompose the MIMO transmission scheme into spatial and spectral precoding procedures. An approximated frequency-domain equalizer (FDE) is introduced at the receiver as an effective solution to decode the signals. The simulation results reveal that FTN signaling outperforms conventional Nyquist signaling under the fixed-bit transmission in terms of the bit error rate (BER) and throughput. It is shown that FTN signaling has the applicability of a lower-level modulation process, which might decrease the peak-to-average power ratio (PAPR), while there exists a tradeoff between PAPR and BER/throughput. Moreover, the advantages of the approximated FDE and FTN-SCFDE systems are confirmed in the MIMO configuration.
引用
收藏
页码:89383 / 89392
页数:10
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