Age of information for broadcast and collection in spatially distributed wireless networks
We consider a wireless network with a base station broadcasting and collecting timesensitive data to and from spatially distributed nodes in the presence of wireless interference. The Age of Information (AoI) is the time that has elapsed since the mostrecently delivered packet was generated, and cap...
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| Format: | Thesis |
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Massachusetts Institute of Technology
2023
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| Online Access: | https://hdl.handle.net/1721.1/147501 https://orcid.org/0000-0002-3786-6436 |
| _version_ | 1811068242925453312 |
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| author | Rao, Chirag R. |
| author2 | Modiano, Eytan |
| author_facet | Modiano, Eytan Rao, Chirag R. |
| author_sort | Rao, Chirag R. |
| collection | MIT |
| description | We consider a wireless network with a base station broadcasting and collecting timesensitive data to and from spatially distributed nodes in the presence of wireless interference. The Age of Information (AoI) is the time that has elapsed since the mostrecently delivered packet was generated, and captures the freshness of information. In the context of broadcast and collection, we define the Age of Broadcast (AoB) to be the amount of time elapsed until all nodes receive a fresh update, and the Age of Collection (AoC) as the amount of time that elapses until the base station receives an update from all nodes. We quantify the average broadcast and collection ages in two scenarios: 1) instance-dependent, in which the locations of all nodes and interferers are known, and 2) instance-independent, in which they are not known but are located randomly, and expected age is characterized with respect to node locations. In the instance-independent case, we show that AoB and AoC scale super-exponentially with respect to the radius of the region surrounding the base station. Simulation results highlight how expected AoB and AoC are affected by network parameters such as network density, medium access probability, and the size of the coverage region. |
| first_indexed | 2024-09-23T07:53:27Z |
| format | Thesis |
| id | mit-1721.1/147501 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T07:53:27Z |
| publishDate | 2023 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1475012023-01-20T04:07:27Z Age of information for broadcast and collection in spatially distributed wireless networks Rao, Chirag R. Modiano, Eytan Massachusetts Institute of Technology. Department of Aeronautics and Astronautics We consider a wireless network with a base station broadcasting and collecting timesensitive data to and from spatially distributed nodes in the presence of wireless interference. The Age of Information (AoI) is the time that has elapsed since the mostrecently delivered packet was generated, and captures the freshness of information. In the context of broadcast and collection, we define the Age of Broadcast (AoB) to be the amount of time elapsed until all nodes receive a fresh update, and the Age of Collection (AoC) as the amount of time that elapses until the base station receives an update from all nodes. We quantify the average broadcast and collection ages in two scenarios: 1) instance-dependent, in which the locations of all nodes and interferers are known, and 2) instance-independent, in which they are not known but are located randomly, and expected age is characterized with respect to node locations. In the instance-independent case, we show that AoB and AoC scale super-exponentially with respect to the radius of the region surrounding the base station. Simulation results highlight how expected AoB and AoC are affected by network parameters such as network density, medium access probability, and the size of the coverage region. S.M. 2023-01-19T19:54:33Z 2023-01-19T19:54:33Z 2022-09 2022-09-21T13:15:03.504Z Thesis https://hdl.handle.net/1721.1/147501 https://orcid.org/0000-0002-3786-6436 In Copyright - Educational Use Permitted Copyright retained by author(s) https://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Rao, Chirag R. Age of information for broadcast and collection in spatially distributed wireless networks |
| title | Age of information for broadcast and collection in spatially distributed wireless networks |
| title_full | Age of information for broadcast and collection in spatially distributed wireless networks |
| title_fullStr | Age of information for broadcast and collection in spatially distributed wireless networks |
| title_full_unstemmed | Age of information for broadcast and collection in spatially distributed wireless networks |
| title_short | Age of information for broadcast and collection in spatially distributed wireless networks |
| title_sort | age of information for broadcast and collection in spatially distributed wireless networks |
| url | https://hdl.handle.net/1721.1/147501 https://orcid.org/0000-0002-3786-6436 |
| work_keys_str_mv | AT raochiragr ageofinformationforbroadcastandcollectioninspatiallydistributedwirelessnetworks |