Open AccessReceiver of FTN signal with oversampling
Author(s) -
Wang Ke,
Liu Aijun,
Liang Xiaohu,
Peng Siming
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.3686
Subject(s) - oversampling , nyquist rate , bandwidth (computing) , nyquist–shannon sampling theorem , symbol rate , signal (programming language) , computer science , sampling (signal processing) , electronic engineering , telecommunications , algorithm , bit error rate , channel (broadcasting) , engineering , detector , programming language
Faster‐than‐Nyquist (FTN) signalling, as a bandwidth‐efficient modulation format, attracts many researchers’ attention. However, the symbol rates of FTN signal are increasing when the packing ratios decreases. Moreover, the FTN signal with small packing ratios requires a high‐rate analogue‐to‐digital converter. Since the bandwidth of FTN signal remains the same, the samples taken at Nyquist sampling rate do not suffer information loss. However, the variable packing ratios induce extra memory‐consumption when the FTN signal is sampled at Nyquist sampling rate. To reduce the sampling rate and the memory‐consumption, a new receiver of FTN signal with oversampling is proposed. Simulation results show that the receiver can perform close to the convolution code line. At the same time, the sampling rate and the memory‐consumption can be reduced by adjusting the oversampling factors according to the packing ratios.