TY - JOUR
T1 - System Development and Experimental Validation of a Long Range VNA-Based Channel Sounder
AU - Mbugua, Allan Wainaina
AU - Fan, Wei
AU - Cai, Xuesong
AU - Chen, Yun
AU - Wang, Wei
AU - Olesen, Kim
AU - Pedersen, Gert Frølund
PY - 2020/11
Y1 - 2020/11
N2 - In a wireless communication system, the radio propagation channel is a complicated component to characterise. Channel sounding equipment thus has to meet specific criteria to extract the desired channel parameters. In this study, the authors outline the development and validation of a vector network analyser (VNA) based channel sounder for the frequency range from 1 to 50 GHz using radio-over-fibre techniques. Three methods of de-embedding phase errors due to hardware impairments are demonstrated and validated via back-to-back measurements. The bidirectional scheme utilising optical circulators is shown to have a superior performance over the two-branch unidirectional and the two-branch bidirectional schemes. Therefore, the bidirectional scheme utilising optical circulators is proposed to achieve a long-range ultra-channel sounder based on the VNA.
AB - In a wireless communication system, the radio propagation channel is a complicated component to characterise. Channel sounding equipment thus has to meet specific criteria to extract the desired channel parameters. In this study, the authors outline the development and validation of a vector network analyser (VNA) based channel sounder for the frequency range from 1 to 50 GHz using radio-over-fibre techniques. Three methods of de-embedding phase errors due to hardware impairments are demonstrated and validated via back-to-back measurements. The bidirectional scheme utilising optical circulators is shown to have a superior performance over the two-branch unidirectional and the two-branch bidirectional schemes. Therefore, the bidirectional scheme utilising optical circulators is proposed to achieve a long-range ultra-channel sounder based on the VNA.
UR - http://www.scopus.com/inward/record.url?scp=85096953638&partnerID=8YFLogxK
UR - https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/iet-map.2019.0923
U2 - 10.1049/iet-map.2019.0923
DO - 10.1049/iet-map.2019.0923
M3 - Journal article
SN - 1751-8725
VL - 14
SP - 1733
EP - 1741
JO - IET Microwaves, Antennas & Propagation
JF - IET Microwaves, Antennas & Propagation
IS - 14
ER -