1. doc.: IEEE 11-13/0836r0 Submission July 2013 Minho Cheong (ETRI)Slide 1 HEW Usage Models for Backhauls and Floor Automation Date: 2013-07-15 Authors: NameAffiliationsAddressPhoneemail Minho CheongETRI161 Gajeong-dong, Yuseong-Gu, Daejoen, Korea +82 42 860 5635minho@etri.re.kr Hyoung Jin KwonETRI161 Gajeong-dong, Yuseong-Gu, Daejoen, Korea +82 42 860 1698kwonjin@etri.re.kr Jae Seung LeeETRI161 Gajeong-dong, Yuseong-Gu, Daejoen, Korea +82 42 860 1326jasonlee@etri.re.kr Sok-Kyu LeeETRI161 Gajeong-dong, Yuseong-Gu, Daejoen, Korea +82 42 860 5919sk-lee@etri.re.kr

2. doc.: IEEE 11-13/0836r0 SubmissionSlide 2 Abstract This document describes additional complementary usage models for HEW. Minho Cheong (ETRI) May 2013

3. doc.: IEEE 11-13/0836r0 Submission Values of HEW Usage Models [1] 1 st value: it is desirable to consider a simple evolution of already-defined 802.11ac usage models –Possibly, by supporting higher data rate for the existing models –By supporting more number of AP’s and STA’s for the deployment of existing models Category 1: Wireless Display – transfer content between devices –Many houses in an apartment use in-room gaming or video-streaming Category 2: Distribution of HDTV and other content –Wireless Office, Remote Surgery, Intra-large vehicle application Category 3: Rapid Upload and Download of large files to/from server –Sync. & go among lots of devices in a limited area Category 4: Backhaul –mesh type or point-to-point backhaul supporting ultra high data rate Category 5: Outdoor Campus / Auditorium deployments –Campus lecture halls supporting tele-presence of ultra high data rate Category 6: Manufacturing Floor Automation May 2013 Slide 3Minho Cheong (ETRI)

4. doc.: IEEE 11-13/0836r0 Submission Values of HEW Usage Models [1] 2 nd value: it is desirable to define new usage models reflecting new cultural landscapes emerged during last several years –Nowadays, people are more likely to volunteer to participate an event to have a common experience in the open area –People are more likely to enhance their experience a lot by downloading streaming video even at the very spot and share their experience with others by uploading video/picture without any delay at the spot as well. –Cloud computing with the use of Wi-Fi is very popularized now 3 rd value: it is better to also consider new additional applications which rather aggressively try to utilize the current Wi-Fi problems which HEW mainly tries to handle with –Such as Wi-Fi geo-location services for dense AP deployments May 2013 Slide 4Minho Cheong (ETRI)

5. doc.: IEEE 11-13/0836r0 Submission Analysis of Consolidated Usage Models [2] July 2013 Slide 5Minho Cheong (ETRI) 1high density of APs and high density of STAs per AP astadium D Omni-view, Crowded UGC’s bairport/train stations D cexhibition hall DWi-Fi LBS dshopping malls DWi-Fi LBS eE-Education D 2high density of STAs – Indoor adense wireless office DCloud Comp. bpublic transportation DWearables clecture hall D, HUnified Com. 3 high density of APs (low/medium density of STAs per AP) – Indoor adense apartment building D, H(?) bCommunity Wi-Fi D Re-using private APs 4 high density of APs and high density of STAs per AP – Outdoor aSuper dense urban Street D Crowded UGC’s bPico-cell street deployment D Augmented Reality Co-located offloading cMacro-cell street deployment D Co-located offloading 5Throughput-demanding applications a surgery/health care (similar to 2e from 11ac) H b production in stadium (similar to 1d-1e from 11ac) D, H csmart car H Value1 (*D: denser deloyed, *H: higher data rate) Value2 (trends of new services. Refer to [3]) Value3 (rather utilizes the current Wi- Fi problems)

6. doc.: IEEE 11-13/0836r0 Submission Analysis of Consolidated Usage Models Missing ones in the current consolidated when compared to 802.11ac usage models [4] –gray: covered with denser deployment, red: missing in HEW ones July 2013 Slide 6Minho Cheong (ETRI) Category 1: Wireless Display – transfer content between devices Category 2: Distribution of HDTV and other content Category 3: Rapid Upload and Download of large files to/from server Category 4: Backhaul Category 5: Outdoor Campus / Auditorium deployments Category 6: Manufacturing Floor Automation

7. doc.: IEEE 11-13/0836r0 Submission Analysis of Consolidated Usage Models EnvironmentIncludes Residential, Domestic or Home Intra-room, Room to room, Indoor to outdoor, Large multi-family dwelling. Note: one or more PCs in the home may be notebooks or other portable devices that come home with the user. these wireless devices may have more than one wireless technology included. House to houseOne main house has AP with uplink connection, Another house holds single or multiple STA(s), Guest house, garage or studio. In garage model, STA may be embed inside a car. Small Enterprise Enclosed offices, Meeting room / conference room, Classroom Medium/Large Enterprise Enclosed offices, Meeting room / conference room, Classroom, Sea of cubes, Multi-story office environment, Campus HotspotAirport, Library, Convention center, Hotel, Shopping mall, Arcade, Train station / bus terminal, Drive-in window OutdoorOutdoor sport event, Campus, City Square, Public park, Amusement park IndustrialIndoor, Large factory floor, Hospital, Warehouse, Concert hall / auditorium, Movie theatre Other custom environments Wireless backhaul, Fixed wireless access, outside to multiple STA inside, outside to multiple STA outside MobileTrain, Bus, Plane, Roadside APs for data-service in-car (fast roaming) July 2013 Slide 7Minho Cheong (ETRI) Missing ones in the current consolidated when compared to 802.11n usage models [5] –gray: covered with denser deployment, red: missing in HEW ones

8. doc.: IEEE 11-13/0836r0 Submission Suggestion It is desirable to add backhaul and floor automation with denser deployment to the HEW usage models, because denser deployment will be as much limiting factor on performance of those as others. July 2013 Slide 8Minho Cheong (ETRI) 1high density of APs and high density of STAs per AP astadium bairport/train stations cexhibition hall dshopping malls eE-Education fMulti-media mesh backhaul 2high density of STAs – Indoor adense wireless office bpublic transportation clecture hall dManufacturing floor automation 3 high density of APs (low/medium density of STAs per AP) – Indoor adense apartment building bCommunity Wi-Fi 4 high density of APs and high density of STAs per AP – Outdoor aSuper dense urban Street bPico-cell street deployment cMacro-cell street deployment 5Throughput-demanding applications asurgery/health care (similar to 2e from 11ac) bproduction in stadium (similar to 1d-1e from 11ac) csmart car dPoint-to-point backhaul

9. doc.: IEEE 11-13/0836r0 Submission Usage Model 1f: Multi-Media Mesh Backhaul Mesh Portal AP connected to wired network. 1 st Hop 2nd Hop Applications are evolving towards more high-quality video intensive use cases for monitoring as well as reporting and interaction. The mesh backhaul, will carry very high traffic loads. 3rd Hop 1 st Hop 2nd Hop 3rd Hop AP Mesh Portal AP HEW Link Non-HEW link July 2013 Slide 9Minho Cheong (ETRI)

10. doc.: IEEE 11-13/0836r0 Submission Usage Model 1f: Multi-Media Mesh Backhaul Traffic Conditions: Mesh Portal AP VHT interface reaches capacity limits with an equal amount of inbound and outbound traffic. Packets may be aggregated. Use Case: 1.User on client devices looks up a program on electronic program guide. 2.User selects a video. 3.High Quality Compressed Video is delivered/uploaded over the wireless network for a period of two hours. 4.User may pause video during 2 hour period then resume watching. 5.Upload/downloading a file while watching the movie is a background task that is not likely to be interrupted. 6.Task is complete when user stops watching the video. 7. The video from multiple clients is aggregated up through the mesh network through the Mesh Portal AP. Pre-Conditions: Mesh topology with one Mesh Portal AP with wired link to a network such as the Internet. An example topology could be up to 3 hops from Mesh Portal AP and 1~10 clients per AP. APs provide mesh routing with simultaneous access for clients. Mesh Portal AP also provide connectivity for clients. Application: Traffic is both outbound and inbound for data, high-quality video and voice. Data may include scheduled hard-drive backups of many PCs. Video is high definition compressed video using, for example, a VHD high compressed video (100Mbps) or HD video (20Mbps). High definition voice may be using a codec like GIPS iPMC-wb or G729.1. Environment: Mesh backhaul for hot spot, enterprise, small office/home office, campus, and municipal deployments. Line of Sight as well as NLOS. There is some unmanageable interference in the area. Hops with a 50 to 200 m separation from each other. July 2013 Slide 10Minho Cheong (ETRI)

11. doc.: IEEE 11-13/0836r0 Submission Usage Model 2d: Manufacturing Floor Automation Traffic Conditions: 1000 independent links and data streams with varying QoS, reliability, and throughput, requirements. Aggregate data flows range into multiple Gbps requirements for each BSS. Use Case: 1. Multiple systems in factory; starting, stopping, and flowing network traffic in a largely asynchronous environment with the use of multiple WLAN BSS’s. 2. Some data flows have significant integrity requirements (large material-handling machines; cranes, crawlers, etc.) 3. Some data flows have significant QoS requirements (VoIP, Video streams, etc.) 4. Factory is VERY electrically noisy; spark-gap noise (electric motors, etc.), microwave ovens, other technologies (RFID, RTLS, etc.), and competing 802.x wireless systems such as 802.15.4g ZigBee’s. Pre-Conditions: Multiple WLAN networks are operational in manufacturing space that has hundreds to thousands of individual tasks happening each minute. Many of these tasks require communications. Application: All types of information required to run large manufacturing floor. Large variances in data transfer size, time sensitivity, and reliability exist. Here are some examples: Streaming of live or CAD video requires high throughput, time sensitive, and reliable transfers: VHD compressed video (100Mbps, <20ms jitter/delay, <1.0E-7 PER) or HD compressed video (20Mbps, <50ms jitter/delay, <1.0E-5 PER) or SD compressed video (5Mbps, <200ms jitter/delay, <1.0E-4 PER) Voice requires lower bandwidth and time sensitive transfers; reliability is less of a concern: standard quality voice streams (<50Kbps, <10ms jitter/delay, <1.0E-2 PER). 30 calls yields aggregate bandwidth requirement of 1.5Mbps. Machine-machine communications, robotic material handling requires high reliability but is less time sensitive. Data loading machines is high bandwidth but low in time sensitivity. Application layer protocols would ensure reliability. Environment: Communications are within a large metallic building with 100m x 100m for 1000 devices. 4 WLAN AP’s are separated each other by equal distance of 50 in the building. High reverberation, long propagation distances (10’s~100’s meters), long delay spreads. Constantly moving equipment changing RF propagation channel model. Slide 11Minho Cheong (ETRI) July 2013

12. doc.: IEEE 11-13/0836r0 Submission Usage Model 5d: Point-to-Point Backhaul Point-to-Point Backhaul HEW Link Slide 12Minho Cheong (ETRI) July 2013

13. doc.: IEEE 11-13/0836r0 Submission Usage Model 5d: Point-to-Point Backhaul Pre-Conditions: Networks (wired or wireless) are be connected via a point-to-point link. The individual networks can support hundreds of users with a wide array of traffic requirements that will only be limited by the HEW link capabilities. Application: Traffic is bidirectional and is comprised of data, voice, high-quality video and data. Data may include scheduled hard-drive backups of many PCs. High Definition Video is compressed using something like a VHD high compressed video (100Mbps) or HD video (20Mbps). High definition voice may be using a codec like GIPS iPMC-wb or G729.1. Each building may hundreds of end users. Consider the case of up to 50 users requiring multi-media connectivity through the point-to-point link at any given moment in time. (50% for VHD, 50% for HD) Aggregate of 50 users = (20M*25users + 100M*25users) = 3.0Gbps throughput. Environment: Point-to-point link distance is 50 meters to 200 meters. Typically locations are Line of Sight. There is some unmanageable interference around the area. Traffic Conditions: Point-to-point link can carry traffic with multiple QoS categories. End of each link is heavily loaded with equal amount of traffic in both directions. Use Case: 1. Two builds are on opposite sides of a rail road track. The building owner has no rights to lay a wire in the ground between buildings. 2. Owner sets up a wireless HEW link between the buildings. 3. Users can now take advantage multi-media applications spanning both buildings. Slide 13Minho Cheong (ETRI) July 2013

14. doc.: IEEE 11-13/0836r0 Submission Slide 14 References [1] 11-13-0554-00-0hew-Usage-models-for-HEW [2] 11-13-0657-03-0hew-hew-sg-usage-models-and- requirements-liaison-with-wfa [3] 11-13-0514-00-0hew-usage-scenarios-and-applications [4] 11-03-0802-23-000n-usage-models [5] 11-09-0161-02-00ac-802-11ac-usage-model-document Minho Cheong (ETRI) July 2013

15. doc.: IEEE 11-13/0836r0 Submission Appendix July 2013 Slide 15Minho Cheong (ETRI)

16. doc.: IEEE 11-13/0836r0 Submission Brief Review of 802.11ac Usage Models Category 1: Wireless Display – transfer content between devices a.Desktop Display at home or enterprise b.In room projection from PC to TV at home or projector in conference room within an enterprise c.In room Gaming – video display from game machine and peer-to- peer connectivity for hand-held controllers d.Streaming from a camcorder to a display (live or stored content) e.Broadcast TV Field Pick Up Slide 16Minho Cheong (ETRI) July 2013

17. doc.: IEEE 11-13/0836r0 Submission Brief Review of 802.11ac Usage Models Category 2: Distribution of HDTV and other content a.Lightly compressed video streaming around the entire home (100s of Mbps) b.Compressed video streaming in a room or throughout a home c.Intra-Large-Vehicle (e.g. airplane) Applications Video streaming of 30-40 movies, 100s of TV channels to up to 300 people with individual play/rewind control over each stream Streams are ~5Mbps each. 300*5Mbps=1.5Gbps d.Wireless Networking for Office e.Remote Medical Assistance via Wireless Networks Slide 17Minho Cheong (ETRI) July 2013

18. doc.: IEEE 11-13/0836r0 Submission Brief Review of 802.11ac Usage Models Category 3: Rapid Upload and Download of large files to/from server a.Rapid Sync-n-Go file transfer – camera to PC (10s of MB per pic), video kiosk b.Picture-by-picture viewing - displaying digital pictures (jpegs, raw files) from a remote storage device to laptop or TV c.Airplane docking – as airplane pulls up to the boarding gate: plane down loads sensor (mechanic info, flight performance, maintenance) & flight information (e.g. crew, passenger info, flight plan) plane uploads next flight information and new videos d.Movie Content Download to Car as it pulls into garage e.Police / Surveillance Car Upload Upload several 10s of GB of data (Video Surveillance footage) from surveillance car to content server police station Slide 18Minho Cheong (ETRI) July 2013

19. doc.: IEEE 11-13/0836r0 Submission Brief Review of 802.11ac Usage Models Category 4: Backhaul a.Multi-Media Mesh Backhaul Hotspot Enterprise Small Office or Home Campus-wide deployments Municipal deployments b.Point-to-Point Backhaul Slide 19Minho Cheong (ETRI) July 2013

20. doc.: IEEE 11-13/0836r0 Submission Brief Review of 802.11ac Usage Models Category 5: Outdoor Campus / Auditorium deployments a.Video Demos or Tele-presence in Auditoriums/Lecture Halls b.Public Safety Mesh Category 6: Manufacturing Floor Automation –Factory floor within large metallic buildings. Applications have a large variance in data transfer size, time sensitivity, and reliability. Slide 20Minho Cheong (ETRI) July 2013