Abstract
Currently, the exploration and development of the Karst natural caves (KNCs) have become hot research topics, and flexible and reliable communication in the KNCs is very important. However, because of the inherent concavity and irregular limestone formations in the KNC, wireless signal propagation is sparse and unpredictable. In this paper, we explore the application of wireless mesh networking (WMN) in the KNC. First, by measuring the relative permittivity of the KNC using the transmission line method at 530 MHz, 670 MHz and 1.4 GHz, we segment the channel characteristics using classical free space propagation modeling, lossy waveguide modeling and bend modeling based on the geographical features of the KNC for reducing the complexity of channel modeling. The measured results are in good agreement with the segment model calculation. Second, we test and evaluate the network performance at 530 MHz, including multihop routings and multidata flows in static scenarios and mobile scenarios. The test results show that audio and video can be transmitted clearly below three hops, it is feasible to deploy WMN in an irregular KNC.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
