Open AccessInterference cancellation technique for faster‐than‐Nyquist signalling
Author(s) -
Nie Shengyu,
Guo Mingxi,
Shen Yuehong
Publication year - 2016
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.2015.3722
Subject(s) - single antenna interference cancellation , computer science , bandwidth (computing) , interference (communication) , nyquist–shannon sampling theorem , electronic engineering , nyquist rate , computational complexity theory , algorithm , telecommunications , engineering , decoding methods , channel (broadcasting) , detector , sampling (signal processing) , computer vision
The faster‐than‐Nyquist (FTN) signalling is a bandwidth‐efficient technology which has drawn attention in the bandwidth‐starved world. However, inter‐symbol interference is introduced by transmitting signals at a higher signalling rate than allowed by the Nyquist criterion. Decision feedback equalisation (DFE) cancellation is an efficient signal detection scheme for FTN‐based communication system. However, since the DFE interference cancellation is executed by overall matrix computation, the required memory size is very large. In order to reduce the complexity of the interference cancellation process, a novel simple interference cancellation is proposed. Simulation results show that the scheme can perform better than DFE, and its complexity is very low because of the absence of QR decomposition.