Abstract
Radio-over-fiber (RoF) technology can effectively improve reliability and quality of service (QoS) of railway communication systems. This paper studies the coverage efficiency of ROF in heavy haul railway. Coverage efficiency is determined by calculating the area power consumption of cell according to combined path loss and shadowing model. The value of the length of remote antenna unit (RAU) cells overlapping area, which would maximize coverage efficiency in different situations, is also estimated. Then, the relation between coverage efficiency and the proportion of antennas installed on the roof of train and RAUs is analyzed. Through theoretical analysis and experimental results, a conclusion for heavy-haul railway can be acquired. When the users' minimum power requirement is fixed, the proportion of train antennas and RAUs which would maximize coverage efficiency is only decided by the separation distance of train antennas rather than the number of them. Meanwhile, the optimal proportions of train antennas and RAUs for corresponding interval of separation distance of train antennas and different users' minimum power requirement are provided.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.