TY - GEN
T1 - On the Investigation of Achievable Links for VLC based Wireless Downhole Telemetry Systems
AU - Tokgoz, Sezer C.
AU - Miller, Scott L.
AU - Qaraqe, Khalid A.
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/5/26
Y1 - 2020/5/26
N2 - In this study, the use of visible light communications (VLC) is discussed as a wireless telemetry solution for the gas pipeline downhole monitoring systems. A gas pipeline environment is emulated using Zemax software where we model a cylinder of 7 inches diameter along with a light source at the beginning of the pipeline and a detector on the other end with one-inch spacing from the pipeline's edge. The coating material of the pipeline is specified as carbon steel, and properties of methane gas are considered in the simulation as similar to the real field conditions. We then perform a non-sequential ray-tracing method on the system with varying link distances, half viewing angles, and cut-off frequencies in order to investigate the effect of these parameters on the detected rays and the power received. Through MATLAB, we derived the channel impulse responses (CIRs) of the system, and according to these values, channel characterization is made by calculating the channel DC gain, path loss, root-mean-square (RMS) delay spread, and mean excess delay spread. Based on the investigations and results, at a certain bit-error-rate (BER), the maximum achievable link distances are observed for different modulation orders.
AB - In this study, the use of visible light communications (VLC) is discussed as a wireless telemetry solution for the gas pipeline downhole monitoring systems. A gas pipeline environment is emulated using Zemax software where we model a cylinder of 7 inches diameter along with a light source at the beginning of the pipeline and a detector on the other end with one-inch spacing from the pipeline's edge. The coating material of the pipeline is specified as carbon steel, and properties of methane gas are considered in the simulation as similar to the real field conditions. We then perform a non-sequential ray-tracing method on the system with varying link distances, half viewing angles, and cut-off frequencies in order to investigate the effect of these parameters on the detected rays and the power received. Through MATLAB, we derived the channel impulse responses (CIRs) of the system, and according to these values, channel characterization is made by calculating the channel DC gain, path loss, root-mean-square (RMS) delay spread, and mean excess delay spread. Based on the investigations and results, at a certain bit-error-rate (BER), the maximum achievable link distances are observed for different modulation orders.
KW - Channel Model
KW - Downhole Wireless Telemetry
KW - Maximum Achievable Links
KW - Visible Light Communications
UR - http://www.scopus.com/inward/record.url?scp=85096657555&partnerID=8YFLogxK
U2 - 10.1109/BlackSeaCom48709.2020.9234990
DO - 10.1109/BlackSeaCom48709.2020.9234990
M3 - Conference contribution
AN - SCOPUS:85096657555
T3 - 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020
BT - 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2020
Y2 - 26 May 2020 through 29 May 2020
ER -