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Use Case Characteristics Discussion

Use Case Characteristics Discussion. Authors:. Date: 2011-03-15. Abstract. Discussion of concepts to be used to differentiate use case requirements. In the r0 form of this slide set the names of those characteristics had not yet been determined. .

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Use Case Characteristics Discussion

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  1. Use Case Characteristics Discussion Authors: Date: 2011-03-15 Tom Siep, CSR

  2. Abstract Discussion of concepts to be used to differentiate use case requirements. In the r0 form of this slide set the names of those characteristics had not yet been determined. Tom Siep, CSR

  3. Note: Need to define or rename high, medium, low. High = hard to achieve Low = easy to achieve Tom Siep, CSR

  4. xxx1 • Xxx1 is the number of STAs attempting to establish for the first time a link to an AP within an ESS as measured over a one second time interval. • High: more than 50 • Medium: 10 to 49 • Low: less than 10 • Link Attempt Rate  • Rate of STA Entry • Rate of initial link request Tom Siep, CSR

  5. xxx2 • Xxx2 is the “busyness” of the wireless medium of the ESS. It is measured as the percentage of time the medium is in use. • High: More than 50% • Medium: 10 to 50% • Low: Less than 10% • Media usage • Channel usage Tom Siep, CSR

  6. xxx3 • xxx3 is the time the STA is within the range of an AP within an ESS. This time is the maximum available time for establishing a link and exchanging data. • High: less than 1 second • Medium: between 1 and 10 seconds • Low: more than 10 seconds • STA dwell time • Time Envelope • Available time Tom Siep, CSR

  7. xxx4 • Xxx4 is the amount time required to establish for the first time a link to an AP within an ESS. This includes the time for AP/Network discovery and (secure) Association and Authentication • High: less than 100 ms • Medium between 100 ms and 2 seconds • Low: more than 2 seconds • NOTE: • “link”, “association”, authentication are defined as per 802.11 • We need to agree when to start measuring this time interval (e.g. when the STA enters the coverage of the ESS, etc.) • Link Set-Up Latency • Link Set-Up Time Tom Siep, CSR

  8. xxx5 • Xxx5 is the time required by the use case for application information exchange. In order to make the use case work, Xxx5 must be smaller than xxx3 – xxx4 . • High: • Medium: • Low: • Application Time Tom Siep, CSR

  9. References Tom Siep, CSR

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