| | 1 | Node {{{md1}}} is a [https://wiki.cosmos-lab.org/wiki/Hardware/Nodes#MediumNode Medium Node] located on the first floor of the Mudd Building at Columbia University, overlooking 120th Street. The [https://wiki.cosmos-lab.org/wiki/Hardware/antennas#Omni-directionalmediumnode omni-directional antenna] has line-of-sight to the majority of 120th St. between Riverside Drive and Morningside Drive, as well as to parts of Amsterdam Avenue headed north. |
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| | 3 | '''''Contributors:''' Watson Mushimbei, Irfan Tamim'' |
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| | 5 | '''''Data:''' [https://wiki.cosmos-lab.org/raw-attachment/wiki/Architecture/Deployment/Measurements/md2/rssi_coverage_map_md2.csv Available here (CSV)] |
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| | 7 | ==== Node photographs |
| | 8 | ||||||Figure 1: Photographs of md2 || |
| | 9 | || [[Image(md1_street.jpeg, 350px)]] || |
| | 10 | || (a) Viewed from across Amsterdam Avenue || |
| | 11 | |
| | 12 | ==== Coverage |
| | 13 | [https://wiki.cosmos-lab.org/wiki/Architecture/Deployment/Measurements Coverage measurements] were performed in the area around {{{md1}}} in February and March 2022. In total, around 100 measurements have been taken on sidewalks in the area spaced by roughly 5m. The measurement results are presented below. |
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| | 15 | || [[Image(rssi_coverage_map_md1.jpg, 800px)]] |
| | 16 | || Figure 1: Coverage measurement results for {{{md1}}}. |
| | 17 | |
| | 18 | These measurements demonstrate an RSSI of around -72 dBm at a 200m distance down the street. As would be expected, the locations close to the node experience the highest RSSI. |
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| | 20 | Up to -82 dBm coverage is achieved up to 70m up a street which is around a corner. |
