2016/07/01 by George R. MacCartney, Sijia Deng, MacCartney, George R. +5 · 2 citations
Engineering · #Advanced MIMO Systems Optimization #FOS: Computer and information sciences #Information Theory (cs.IT) #Millimeter-Wave Propagation and Modeling #Wireless Body Area Networks
paper · pdf · doi:10.48550/arxiv.1607.00226
openalex publication_date 2016/07/01 · openalex created_date 2022/10/05 · openalex updated_date 2026/07/28
This paper presents 73 GHz human blockage measurements for a point-to-point\nlink with a 5 m transmitter-receiver separation distance in an indoor\nenvironment, with a human that walked at a speed of approximately 1 m/s at a\nperpendicular orientation to the line between the transmitter and receiver, at\nvarious distances between them. The experiment measures the shadowing effect of\na moving human body when using directional antennas at the transmitter and\nreceiver for millimeter-wave radio communications. The measurements were\nconducted using a 500 Megachips-per-second wideband correlator channel sounder\nwith a 1 GHz first null-to-null RF bandwidth. Results indicate high shadowing\nattenuation is not just due to the human blocker but also is due to the static\ndirectional nature of the antennas used, leading to the need for phased-array\nantennas to switch beam directions in the presence of obstructions and\nblockages at millimeter-waves. A simple model for human blockage is provided\nbased on the double knife-edge diffraction (DKED) model where humans are\napproximated by a rectangular screen with infinite vertical height, similar to\nthe human blockage model given by the METIS project.\n