Open AccessImproving THz wireless communication data transmission rates
Author(s) -
Gao Yong,
Huang Yankui,
Huo Tingting
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2018.6490
Subject(s) - demodulation , baseband , modulation (music) , transmission (telecommunications) , electronic engineering , data transmission , wireless , computer science , analog transmission , terahertz radiation , frequency modulation , symbol rate , delta modulation , pulse amplitude modulation , quadrature amplitude modulation , bit error rate , telecommunications , bandwidth (computing) , digital signal , engineering , detector , physics , computer network , optics , channel (broadcasting) , acoustics , pulse (music)
The working frequency of wireless communication systems will inevitably be developed for the higher‐frequency terahertz (THz) band. An effective way to improve data transmission rates in this band is to adopt higher‐order modulation. However, existing THz wireless communication systems struggle to realise higher‐order modulation and demodulation at high speeds. Baseband digital modulation mixes signals with the same modulation and symbol rate. Different bit streams are sent on the 0.34 THz band and the receiver uses a per‐survivor processing algorithm to separate and demodulate the mixed signal. This doubles the transmission rate of THz data whilst avoiding the problem of modulation and demodulation at high speeds resulting from higher‐order modulation. Both simulation and measured data is used to verify the feasibility of the method.