Andreas Johnsson, PhD

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BARTA technology transfer in progress

• Andreas Johnsson, PhD
• Ericsson Research

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Outline

• BART
• Executive summary
• Examples of measurement results
• Technology transfer
• BART team
• Product areas
• Patents and licensing
• Standardization
• Current research projects
• Concluding remarks

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BARTExecutive summary 1/3 problem statement
Network topology
Available bandwidth
Link capacity
Utilization
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BARTExecutive summary 2/3 measurement
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BARTExecutive summary 3/3 analysis model

• Strain e (?out ?in) / ?in
• BART algorithm
• System state X a ßT
• Available bandwidth - ß /a
• u where e diviates from 0
• New measurement sample from each probe-packet
  train
• Use sample to update X
• u and e input to Kalman filter
• Estimate of system state X is updated for each
  (u, e) sample
• Kalman filter tuning on how fast to react to new
  samples
• AB estimate automatically updated

o
e a u ß
e
AB
u
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BARTExamples of measurement results
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Technology transferBART team

• Ericsson Research
• 1 researcher in Jan 2004 (start of EVERGROW)
• 5 researchers today
• of which 2 were recruited for BART activities
• Swedish Institute of Computer Science
• 1 researcher
• Linköping University
• 1 PhD student
• Mälardalen University
• 1 professor
• looking for 1 new PhD student

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Technology transfer Product areas
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Technology transferPatents and licensing

• Patents
• Several filed patents within the BART technology
  area
• of which 3 were filed during 2007
• External licensing of BART patents
• BART evaluation contract
• Vehicle industry
• Opportunity for new business and new customers

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Technology transferStandardization

• ITU-T
• Telecommunication standardization sector
• Initiated work on pushing BART in SG12
• Information on SG12
• End-to-end transmission performance
• Perceived quality-of-service in telecom
• IP QoS
• Performance and resource management

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Technology transferCurrent research projects

• TRAMMS
• Traffic measurements and models in Multi-Service
  Networks
• Celtic project 2007-2009
• Partners from Hungary, Serbia, Spain and Sweden
• Characterize end-user traffic
• Traffic measurements
• Traffic analysis and modeling
• Broadband bottleneck analysis and capacity
  planning
• BART activities
• Further evaluation of the BART algorithm in
  different operator network scenarios
• Use BART in combination with other tools for
  detecting and analyzing bottlenecks

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Technology transferCurrent research projects

• BARTAP
• BART APplications
• VINNOVA project 2008-2010
• Partners Ericsson, MDH and SICS
• Develop applications based on BART
• Example Integrate BART in media applications
  e.g. for rate adaptation
• MOMENT
• Monitoring and Measurement in the Next
  Generation Technologies
• FP7 project 2008
• Partners from Austria, Greece, Hungary, Israel,
  Italy, Spain, Sweden, Switzerland, USA
• Design and implement a mediator architecture
  offering a unified interface for measurements and
  monitoring services
• BART activities
• Define a API between the mediator architecture
  and BART
• Use this API in other scenarios as well

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Concluding remarks

• BART has been developed in EVERGROW
• A technology transfer in progress at Ericsson
• From 1 to 5 involved employees in 4 years
• Several pending patents
• Research product development cooperation
• Standardization initiatives
• Licensing of technology
• New research projects to further develop BART
• http//www.barttool.org/