Wireless Trace Analysis

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Wireless Trace Analysis
Fall 2007

• Suyong Lee and Renata Aryanti
• Advisor Prof. Suman Banerjee
• With assistance of Vladimir Brik and Michael
  Blodget

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What we are doing

• Analyzing the wireless traffic traces in Helen C.
  White College Library building, located in 600 N.
  Park St, Madison, WI.
• 1. Contention
• 2. Mobility Pattern
• 3. Users Connection Pattern
• 4. Data Rate Distribution
• 5. Download VS Upload Stream
• 6. Traffic Distribution Among APs

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Network Usage

• Of all the wireless traces collected in HCW
  College Library, this is the data
• Xx is using UW-Net-Helen C White network
• Xx is using other UW network, such as
  Memorial Union, ScienceHall, or Water Science
  network.
• Xx are using foreign network.

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Network Usage(Continue)?
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Contention

• The number of nodes connected on each AP over
  time. Each color on the diagram represent
  different APs. The data is from the AP logs.
• The data is taken from the logs on May 15th
  17th, 2007

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Contention 1st floor
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Contention 2nd floor
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Contention 3rd floor
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Contention 4th floor
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Association, Disassociation, MaxRetries, and
Roaming

• May 15th, 2007

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Association, Disassociation, MaxRetries, and
Roaming

• May 16th, 2007

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Association, Disassociation, MaxRetries, and
Roaming

• May 17th, 2007

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Mobility

• Analyze the prevalence of each user.
• Prevalence the fraction of length each user
  connected on each AP compared to the whole
  connection time to the whole network.

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Prevalence

• May 15th, 2007

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Prevalence

• May 16th, 2007

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Prevalence

• May 17th, 2007

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Users Connection Pattern

• How long each user connected to the network every
  day.
• How many APs the users usually connected to in a
  day.

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Length of Connected for users

• May 15th May 17th

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Number of APs users get connected in a day

• May 15th May 17th

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Download VS Upload Stream

• Analyze the download VS upload stream for each AP.

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Traffic Distribution between APs

• The traffic go pass each APs

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Data Rate Distribution
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Control Traffic Distribution
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