1. Simulation Scenarios Date: 2013-08-23 Authors: Aug 2013 May 2013
doc.: IEEE /xxxxr0
Aug 2013
Simulation Scenarios
Date:
Authors:
Simone Merlin (Qualcomm)
Osama Aboul-Magd (Huawei Technologies)

2. Summary Aug 2013 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”
Aug 2013
Definition of “Simulation Scenario”
A simulation scenario is defined by
Topology: AP/STAs 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
An interfering scenario (its performance may not be 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”
Aug 2013
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
Aug 2013
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
Aug 2013
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
Aug 2013
Current Status – Classification
Document
Scenario name
AP distance
STA
density
Management
Propagation
Homogeneity
Traffic profile
[tentative]
Possible Common Scenario
#723
(Intel)
July
Residential
10m
5/AP
Not managed
Indoor
Flat
Home
Wireless Office
20m
250/AP
Managed
Enterprise
Stadium
100/AP
Outdoor
Mobile
Outdoor Hotspot
Hotspot
15-200m
30/AP
Outdoor Large BSS
Indoor Hotspot
#542 (Qualcomm)May
1/apt
Several/AP
Not
High
#757 July, #486 May
(Broadcom)
Outdoor only m
Outdoor + Indoor
Hierarchical
Mobile + Home
+ Residential
Dense, Planned
15-30m N
Dense, UnPlanned
Continues..
Simone Merlin (Qualcomm)

8. Current Status – Classification
Aug 2013
Current Status – Classification
.. continued
Document
Scenario name
APs distance
STAs density
Management
Propagation
Homogeneity
Traffic profile
[tentative]
Possible Common Scenario
#847 July
Nokia
Residential
10m
5/AP
Not managed
Infoor
Flat
Home
#786 July
Huawei
High density of APs and STAs
20m
100/AP ?
Indoor
Enterprise?
Enterprise
High density of STAs
50m
High density of APs
2/AP
Outdoor (AP co-site with small cell) 50
40/AP
Managed
Outdoor
Hierarchical
Mobile
Outdoor Large BSS
+ Outdoor Hotspot
#869 July
Orange
Hotspot / Managed ESS
High
Outdoor/Indoor Hotspot
Unmanaged
Office / School
Simone Merlin (Qualcomm)

9. Proposed Unified Set of Scenarios
Aug 2013
Proposed Unified Set of Scenarios
The following table summarizes the identified common scenarios
Effectively, we can define just 3 distinct topologies, and 3 traffic profiles
Scenarios 2a,2b,and 2c to share exactly same topology, only difference in channel/ traffic
Can we merge/eliminate some of them?
Suggest to merge 3b and 3c
Scenario Name
Topology
Management
Channel Model
Homogeneity
~Traffic Model 1
Residential A
(Apartment Bldg)
Unmanaged
Indoor
Flat
Home 2a
Enterprise B
(Dense small BSSs)
Managed 2b
Indoor Hotspot
Mobile 2c
Outdoor Hotspot
Outdoor 3a
Outdoor Large BSS C
(Large BSSs) 3b
+ Residential
C+A
Managed+ Unmanaged
Hierarchical
Mobile + Home 3c
+ Outdoor Hotspot
C+B
Simone Merlin (Qualcomm)

10. Scenarios and Usage models
Aug 2013
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 Aug 2013 Slide 11 Simone Merlin (Qualcomm) Usage Model AP density
STA density
Management
Propagation
Homogeneity
Traffic
[tentative]
Mapping 1
high density of APs and high density of STAs per AP a
Stadium
12-20m
~50/AP
Managed
Outdoor/Indoor
Flat
Mobile
Outdoor/Indoor Hotspot b
airport/train stations
15-20m
120/AP
Outdoor?
Outdoor Hotspot c
exhibition hall
5-10m
100/AP
Indoor
Mobile/Enterprise
Enterprise or Indoor Hotspot d
shopping malls
~High
Indoor Hotspot e
E-Education
~1/class?
~40-60/AP
Enterprise f
Multi-media Mesh backhaul
50-200m?
1-10/AP
Indoor/Outdoor? ? 2
high density of STAs – Indoor
dense wireless office
<50m
20-30/AP
public transportation
High
lecture hall
< 200m
Enterprise?
Manufacturing Floor Automation
50m
250/AP 3
high density of APs (low/medium density of STAs per AP) – Indoor
dense apartment building
10m
5/AP
Unmanaged
Home
Residential
Community Wi-Fi
(20/channel)
Low
Indoor/outdoor
Home + Mobile
Outdoor Large BSS+ 4
high density of APs and high density of STAs per AP – Outdoor
Super dense urban Street
10-20m
/AP
Outdoor
Pico-cell street deployment m
Outdoor Large BSS
Macro-cell street deployment
(High)
Hierarchical
+ Outdoor Hotspots 5
Throughput-demanding applications
surgery/health care (similar to 2e from 11ac)
low
production in stadium (similar to 1d-1e from 11ac)
3/AP
smart car
1 AP?
Indoor ? sd
Slide 11
Simone Merlin (Qualcomm)

12. Proposed Unified Set of Scenarios
Aug 2013
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 Aug 2013 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. Aug 2013
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”, Eldad Perahia (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)