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Investigating path loss and its power law dependence for UHF propagation over buildings in urban environment | |
Author | Pesarillo, Lemuel R. |
Call Number | AIT RSPR no. TC-95-15 |
Subject(s) | Diffraction |
Note | A research submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology |
Publisher | Asian Institute of Technology |
Abstract | This paper presents theoretical results for the power law dependence (numerical index n), that defines the degree of increase or decrease of path loss as the signal propagates over building rooftops for varying parameters such as frequency, spacing distance between buildings and antenna height. Likewise, the behavior of the overall path loss as the signal is transmitted from base station over the rooftops of the buildings, and down to the mobile receiver as it moves along the road, is also presented. The behavior of the signal as it is propagated over the building rooftops tends to have an opposite effect for antennas above the rooftop compared for those below. However, for the ones on the level of the building edge, the path loss is not affected by any other parameters, but only by the number of screen I building edge. As the signal is diffracted from the edge of the screen down to mobile at street level, the path loss decreases as the mobile moves away from the building side (away from base) and away from the normal line. This phenomena manifest the significant effect of the diffraction to the path loss and signal level than range dependence. |
Year | 1995 |
Type | Research Study Project Report (RSPR) |
School | School of Engineering and Technology (SET) |
Department | Department of Information and Communications Technologies (DICT) |
Academic Program/FoS | Telecommunications (TC) |
Chairperson(s) | Ahmed, Kazi Mohiuddin |
Examination Committee(s) | Makelainen, Kimmo ;Zhang, Jian-Guo |
Scholarship Donor(s) | King of Thailand (King's Scholarship Award) |
Degree | Research Studies Project Report (M.B.A.) - Asian Institute of Technology, 1995 |