kumoh national institute of technology
Networked Systems Lab.

NSL Seminar

NSL > Education> NSL Seminar
Soil Effects on the Underground-to-Aboveground Communication Link in Ultrawideband Wireless Underground Sensor Networks
By : Nwadiugwu Williams P
Date : 2018-09-07
Views : 63

Abstract — Wireless underground sensor networks (WUSNs) is an emerging area of research. They are used in many applicationsfromintelligentirrigationtosecurityandassistednavigation. WUSNs mainly use narrowband systems working in the frequency range below 1 GHz and, therefore, suffer from a poor localization capability and large sized antennas. The use of impulse radio ultrawideband(UWB)technique allows alleviating these drawbacks.In this letter,the impact of soil on UWB underground-to-aboveground communication link is studied experimentally. More specifically, the effects of the orientation of the buried antenna and burial depth and soil moisture are investigated. The experimental results show that, at 7 GHz, additional attenuation of 10, 34, and 40 dB are noted for depointing the underground antenna by 90, increasing the depth from 0 to 30cm and raising the soil moisture from 0% to 20%, respectively. Burial depth lower than 30 cm or soil moisture lower than 20% allow getting acceptable received signal strength (superior to –100 dBm) for communication and localization, particularly in the UWB low band (3.1–5 GHz). The obtained results bring out the feasibility of UWB WUSN.
Attachment 1:   ÷ soil_uwb.pdf(260.0KB)  
Attachment 2:   ÷ Seminar on Soil_Uwb.pdf(2.4MB)  
(Total:659 articles / page:1/66 )
No. Subject By Date Views
659  Fog-Empowered Anomaly Detection in IoT Using Hyperelli.. new Riesa Krisna Astuti 2019-02-15 25
658  Positioning of UAVs for Throughput Maximization in Sof.. new Muhammad Taufiq Rama 2019-02-15 12
657  DroneNetX: Network Reconstruction Through Connectivity.. Heidy Indrayani 2019-02-11 16
656  Neighbor- Based Dynamic Connectivity Factor Routing Pr.. Nita Hidayati 2019-02-11 17
655  Machine Learning for Networking: Workflow, Advances an.. Saviour 2019-02-01 22
654  Blockchains and Smart Contracts for the Internet of Th.. Kevin Putra Dirganto 2019-01-31 16
653  Protocol Design for Enabling Full-Duplex Operation in .. sanjay 2019-01-17 27
652  Opportunistic Resource Scheduling for LTE-Unlicensed w.. Gaspard Gashema 2019-01-17 55
651  Integration of LoRaWAN and 4G/5G for the Industrial In.. 2019-01-10 28
650  On Removing Routing Protocol from Future Wireless Netw.. Rizki Rivai Ginanjar 2019-01-10 19