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Simulation Scenarios

Simulation Scenarios. Authors:. Date: 2013-08-23. Summary. Simulation Scenarios definition Proposed definition Proposed template description format Discussion on the set of scenarios Summary of IEEE discussion so far Proposal for identifying a minimum set of simulation scenarios.

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Simulation Scenarios

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  1. Simulation Scenarios Authors: Date: 2013-08-23 Simone Merlin (Qualcomm)

  2. Summary • Simulation Scenarios definition • Proposed definition • Proposed template description format • Discussion on the set of scenarios • Summary of IEEE discussion so far • Proposal for identifying a minimum set of simulation scenarios Simone Merlin (Qualcomm)

  3. Definition of “Simulation Scenario” • A simulation scenario is defined by • Topology: AP/STAs positions, P2P STAs pair positions, obstructions , layout, propagation model • Traffic model • STA - AP traffic • P2P traffic (tethering, Soft-APs, TDLS) • ‘Idle’ devices (generating management traffic such as probes/beacons) • List of PHY, MAC, Management parameters • We may want to fix the value of some parameters to limit the degrees of freedom, and for calibration • Optionally, some STAs may use legacy (11n/ac) operation parameters, if required to prove effectiveness of selected HEW solutions • An interfering scenario (its performance optionally tracked) • Not managed or managed by a different entity than the one of the main scenario • Defined by its own topology, traffic model and parameters • The group should adopt a common way to describe a scenario • See a tentative template in document 11-13/1001r0 Simone Merlin (Qualcomm)

  4. Definition of “Simulation Scenario” • The purpose of a simulation scenario is not to exactly simulate a usage model, but rather to capture the key characteristics of that usage model, relevant for testing the effectiveness of new HEW solutions • There may be multiple usage models mapped to a same simulation scenario • We should define a preferably reduced number of simulation scenarios that cover most of the usage models • It is useful to limit the number of simulation scenarios to a minimum set that represents the most important challenges for HEW • Avoids to have up to 18 scenarios (one per usage model) • Helps to better identify the goals for HEW • Facilitates comparison Simone Merlin (Qualcomm)

  5. Current Status and Goals • Several presentations at previous meetings proposed simulation scenarios • see References, appendix and next slides • Multiple of the proposed scenarios targeted a same usage model, but had different topology/setup • In the next slides we try to • Classify the proposed simulation scenarios, identify the commonalities and come up with a minimum representative set • Define the next steps Simone Merlin (Qualcomm)

  6. Current Status – Classification • Presentation [1-13] classified the simulation scenarios mainly based on • Topology: Density of STA, Density of APs • Management • Infrastructure APs belonging to same management domain (e.g. same operator) • P2P traffic included in the scenario may not be managed • Interference from overlapping networks is not managed • Or, each AP belong to different management domain (e.g. in a apartment building) • Propagation: Indoor only, Outdoor only, Mixed • Homogeneity • All APs with similar coverage (flat) • APs with significantly different coverage and overlapped (hierarchical) • Traffic models were not well specified per each scenario • Tentatively 3 representative traffic profiles are named as ‘Home’, ‘Enterprise’, ‘Mobile’ an associated to the scenarios based on reasonable guesses • The goal is just to point our which scenarios may use a similar traffic model, not to define the traffic model • In the next slides we classify the scenarios based on above criteria and tag them with a new name, giving a same name to scenarios that are similar Simone Merlin (Qualcomm)

  7. Current Status – Classification Continues.. Simone Merlin (Qualcomm)

  8. Current Status – Classification .. continued Simone Merlin (Qualcomm)

  9. Proposed Set of Simulation Scenarios Simone Merlin (Qualcomm)

  10. Scenarios and Usage models • The next slide attempts a mapping between the scenarios and the usage models • For some usage models there was not enough information to make a correct determination Simone Merlin (Qualcomm)

  11. sd Simone Merlin (Qualcomm) Slide 11

  12. Proposed Unified Set of Scenarios • The identified scenarios in slide 9 cover most of the challenging usage models that will put HEW solutions to a test • Would the group agree to adopt these scenarios as a baseline set? • i.e. these scenarios to be used for proving effectiveness of HEW solutions • If yes, we need to define each of them in details • Call for submissions following the template in 11-13/1001r0 • Some usage models seem not covered by the baseline scenarios • Do we need more scenarios? Simone Merlin (Qualcomm)

  13. Conclusion • Defined what a Simulation Scenario is • Identified a baseline set of simulation scenarios from earlier IEEE presentations • The scenarios seem representative of most of the key aspects to be investigated in HEW and cover most of the usage models • Do we agree to use these scenarios as a reference set? • i.e. these scenarios are used for proving effectiveness of HEW solutions • Call for submissions for refining scenarios description • Following the proposed template in 11-13/1001r0 • Some usage models are still not mapped to a simulation scenario • Do we need more scenarios? Simone Merlin (Qualcomm)

  14. Straw poll • Do you agree with the definition of the initial set of simulation scenarios as in the table on slide 9? Simone Merlin (Qualcomm)

  15. Straw poll • Do you agree to use the document 11-13/1001r2 as a template for the Simulation Scenarios Document? Simone Merlin (Qualcomm)

  16. References May • 11-13/486, “Evaluation methodology and simulation scenarios” Ron Porat (Broadcom) • 11-13/520r1, HEW Scenarios and Evaluation Metrics, Thomas Derham (Orange) • 11-13/538 “Dense apartment building use case for HEW” , Klaus Doppler (Nokia) • 11-13/ 542 “Discussion on scenarios and goals for HEW”, Simone Merlin (Qualcomm) July • 11-13/0722, “HEW Evaluation Methodology”, Minyoung Park (Intel) • 11-13/0723, “HEW SG evaluation methodology overview” Minyoung Park (Intel) • 11-13/757, “Evaluation methodology and simulation scenarios” Ron Porat (Broadcom) • 11-13/0786, “HEW SLS methodology”, Tianyu Wu (Huawei) • 11-13/0795, “Usage scenarios categorization”, EldadPerahia (Intel) • 11-13/0800, “HEW Study Group Documentation”, Hemanth Sampath  (Qualcomm) • 11-13/0802, “Proposed re-categorization of HEW usage Models”, Yasuhiko Inoue (NTT) • 11-13/0847, “Evaluation Criteria and Simulation Scenarios”, Klaus Doppler (Nokia) • 11-13/869r0, Simulation scenarios and metrics for HEW, Thomas Derham (Orange Simone Merlin (Qualcomm)

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