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Breakout - Airheads Macau 2013 - Outdoor Wi-Fi

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Breakout - Airheads Macau 2013 - Outdoor Wi-Fi …

Breakout - Airheads Macau 2013 - Outdoor Wi-Fi
Included Topics:

Aruba Outdoor Product
Enhancements
Antennas
RF coverage
Use Case: Access
Use Case: Bridging
Installation Best? Practices

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  • In this section, we will discuss the capacity planning for HD WLANs. You will learn the basic approach to planning an HD WLAN and making a first-order assessment of whether a desired level of performance is possible for an area of a given size.
  • The two-radio, multifunction AP-134 and AP-135 are ultra-high-performance indoor 802.11n access points (APs) designed for high-density environments. The AP-134 features two 3x3:3 MIMO radios (2.4GHz / 5GHz) with external antenna interfaces while the AP-135 features the same radios with integrated antenna elements. Compared to 3x3:2 and 2x2:2 MIMO radios, AP-134 and 135 radios offer 50% greater aggregate performance. Both APs can provide WLAN access with part-time air monitoring for wireless IPS and spectrum analysis, dedicated air monitoring for wireless IPS and spectrum analysis, Remote AP (RAP) functionality or secure enterprise mesh.Enabled with ArubaOS 6.1Yes. Spectrum analysis remotely scans the 2.4-GHz and 5-GHz radio bands to identify sources of RF interference. This provides visibility into non-802.11 RF interference sources and their effect on 802.11 channel quality.Maximum visibilityMonitoring against noise and intrusions 100% of the time ----- Meeting Notes (1/31/11 16:09) -----Arran software featuresMACSec encryption - add this piece
  • This is the pattern plot for a high gain omnidirectional antenna. The azimuth (top view) shows almost equal signal in all directions. The elevation (side view) shows a narrow beamwidth to each side. It is important to realize that the polar pattern plot is showing the pattern of the antenna in decibels. Remember that for every 6 dB decrease, the signal travels half the distance. If you convert the pattern plot to a scaled or linear representation of the signal, it would look somewhat like the linear view at the bottom center of the slide.
  • This antenna is a directional sector antenna. The polar pattern plots shows a horizontal beamwidth of about 90 degrees and a vertical beamwidth of about 16 degrees. Notice that the 3 dimensional view at the bottom of the slide is a logarithmic view and not a linear view, therefore it is displaying the antenna pattern based upon the decibel measurements.
  • 46:01

Transcript

  • 1. Outdoor Wi-Fi Eric Johnson: Product Manager November, 2013 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 1 #airheadsconf
  • 2. Agenda • • • • • • • Aruba Outdoor Product Enhancements Antennas RF coverage Use Case: Access Use Case: Bridging Installation Best? Practices CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 2 #airheadsconf
  • 3. MeshOS CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 3 #airheadsconf
  • 4. Aruba AirMesh Product Family MST200 MSR4000 • Outdoor Mesh Router • Quad Radio, 802.11n • Software configurable for 2.4, 5, or 4.9GHz • • • • MSR2000 Outdoor Mesh Router Single Radio, 802.11n 5GHz Integrated MIMO antenna • Outdoor Mesh Router • Dual Radio, 802.11n • Software configurable for 2.4, 5, or 4.9GHz MSR1200 • Indoor Mesh Router • Dual-Radio, 802.11n • 2.4 or 5GHz Aruba MeshOS Layer 3 Routing Intelligence CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved RF Awareness Video Optimization 4 Mobility #airheadsconf
  • 5. (I)AP-175 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 5 #airheadsconf
  • 6. Aruba (I)AP-175 802.11n Outdoor AP • Performance – Dual radios, 2.4-GHz and 5-GHz – 300Mbps data rate per radio • Purpose built – IP66/67 and NEMA 4X rated – POE, AC and DC versions • Unprecedented Visibility – Always-on visibility to noise sources – Integrated wireless security on all radios • Flexible Deployment – Point-to-Point and Point-to-Multipoint – Mesh for wireless backhaul CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 6 #airheadsconf
  • 7. Product Enhancements CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 7 #airheadsconf
  • 8. Outdoor Hardware Updates Number of incremental adds for outdoor MST200 AC powered unit added to March price list – New power cables/accessories for this unit • PC-OD-AC-P-INT • AC Power Cord for MST200 AC International Version • PC-OD-AC-P-NA • AC Power Cord for MST200 AC International Version • CKIT-OD-AC-P • Connector for creating AC power assembly New flexible cables added as alternates – ANT-CBL-1 • Flexible 1m, low loss, RF cable assembly – ANT-CBL-2 • Flexible 2m, low loss, RF cable assembly 2314/5314 Antennas 8 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 8 #airheadsconf
  • 9. MST200-AC AC version of MST200 PoE+ 802.3at PSE 9 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 9 #airheadsconf
  • 10. Goretex Vents These are being cut into all outdoor chasses They allow for air and vapor to pass but not liquid water or dust 10 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 10 #airheadsconf
  • 11. New Outdoor Antennas Aruba has introduced two band specific antennas – ANT-2x2-2314, 260x260x30 mm, 10.2”x10.2”x1.2” – ANT-2x2-5314, 190x190x30 mm, 7.5”x7.5”x1.2” 5 GHz antenna will be alternate to 5614 and should be the antenna of choice for P2P links Patterns are matched at 2.4 and 5 GHz CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 11 #airheadsconf
  • 12. ANT-2x2-2314 Competitor Aruba THESE ARE PLOTTED ON EXACTLY THE SAME SCALE CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 12 #airheadsconf
  • 13. ANT-2x2-5314 Aruba Competitor CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 13 #airheadsconf
  • 14. Filtered Lightning Arrestor 14 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 14 #airheadsconf
  • 15. AP-LAR-24 Product Photo Suitable for direct mount 2.4 to 2.4835 GHz passband Filters cellular, WiMAX 2.3 and 2.5 SURGE PROTECTION RATING – 10kA IEC 61000-4-5 8/20μs -40°C to +85°C°/-40°F to +185°F IP66/67 rated Surge Side N type female Protected Side N type male 15 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 15 #airheadsconf
  • 16. Frequency Response 2.4 GHz 2.5 GHz 1.0 GHz 16 8.0 GHz CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 16 #airheadsconf
  • 17. Antennas and Propagation 17 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 17 #airheadsconf
  • 18. Propagation • Free Space Propagation – -20*log(4* ) • 2.4 GHz you lose -40 dB in the first meter • 5.8 GHz you lose -48 dB in the first meter – Factors of 2 in distance are 6 dB – Factors of 10 in distance are 20 dB • Two Ray breakpoint model – Propagation changes from R2 to R4 beyond this distance • 4hthr • ht: this is the height of the transmitter • hr: this is the height of the receiver 18 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 18 #airheadsconf
  • 19. Fresnel Zone • This is a football shaped area between two antennas that define the area needed to propagate the plane wave without excess power loss – It reaches a maximum size half way across the link Distance Miles 0.25 0.5 1 2.5 5 19 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 2.4 GHz Fresnel 0.6 Fresnel ft ft 11.6 7.0 16.5 9.9 23.3 14.0 36.8 22.1 52.0 31.2 19 5 GHz Fresnel 0.6 Fresnel ft ft 7.5 4.5 10.7 6.4 15.0 9.0 23.7 14.2 33.5 20.1 #airheadsconf
  • 20. Antenna Basic Physics • When the charges oscillate the waves go up and down with the charges and radiate away • With a single element the energy leaves uniformly. • Also known as omnidirectionally 20 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 20 #airheadsconf
  • 21. Building Arrays: 2 Elements • By introducing additional antenna elements we can control the way that the energy radiates • 2 elements excited in phase 90 120 60 Linear Plot 150 30 180 0 105 210 330 90 75 120 60 135 /2 240 300 270 45 150 30 165 15 180 0 195 345 210 dB Plot 330 225 315 240 300 255 21 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 21 270 285 #airheadsconf
  • 22. Building Arrays: 4 Elements • By introducing additional antenna elements we can control the way that the energy radiates • 4 elements excited in phase 90 120 60 Linear Plot – Equal amplitude 150 30 180 0 105 90 75 330 120 210 60 135 240 45 300 150 30 270 165 15 180 0 195 345 210 dB Plot 330 225 315 240 300 255 22 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 22 270 285 #airheadsconf
  • 23. Building Arrays: 4 Elements • By shaping the amplitude we can control sidelobes • 4 elements excited in phase 90 120 60 Linear Plot – Amplitude 1, 3, 3, 1 150 30 180 0 105 210 90 75 330 120 60 135 240 45 300 150 30 270 165 15 180 0 195 345 210 dB Plot 330 225 315 240 300 255 23 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 23 270 285 #airheadsconf
  • 24. Building Arrays: 4 Elements Phase • By altering phase we can alter the direction that the energy travels • 4 elements excited with phase slope 90 120 60 Linear Plot – Even amplitude 150 30 180 0 105 210 90 75 330 120 60 135 240 45 300 150 30 270 165 15 180 0 195 345 210 dB Plot 330 225 315 240 300 255 24 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 24 270 285 #airheadsconf
  • 25. Reading Antenna Pattern Plots - Omni Azimuth Elevation -3 dB Sidelobes Omnidirectional Antenna (Linear View) 25 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 25 #airheadsconf
  • 26. Reading Antenna Pattern Plots - Sector -3 dB Front -3 dB Side Back Backlobe Azimuth Sidelobes Elevation Sector Antenna (Logarithmic View) 26 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 26 #airheadsconf
  • 27. ANT-2x2-2005 Heat Maps CONFIDENTIAL CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. © Copyright 2011. Aruba Networks, Inc. All rights reserved All rights reserved 27 #airheadsconf
  • 28. Ant-2x2-2005 Antenna Patterns • Model • Measured 105 90 75 120 60 a 135 45 150 30 165 15 180 0 195 345 210 330 225 315 240 300 255 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 28 a 270 285 5 dB per division #airheadsconf
  • 29. Heat Map: Antenna at 5 m height C/I Contours C/I Contours 100 m 1000 m CI CI dBm dBm System EIRP: 23 dBm total CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 29 #airheadsconf
  • 30. Heat Map: Antenna at 10 m height C/I Contours C/I Contours 100 m 1000 m CI CI dBm CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 30 dBm #airheadsconf
  • 31. Heat Map: Antenna at 20 m height C/I Contours C/I Contours 100 m 1000 m CI CI dBm CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 31 dBm #airheadsconf
  • 32. Heat Map: Antenna at 40 m height C/I Contours C/I Contours 100 m 1000 m CI CI dBm CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 32 dBm #airheadsconf
  • 33. ANT-2x2-5010 Heat Maps 33 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 33 #airheadsconf
  • 34. Ant-2x2-5010 Antenna Patterns • Model • Measured 105 90 75 120 60 a 135 45 150 30 165 15 180 0 195 345 210 330 225 315 240 300 255 34 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 34 a 270 285 5 dB per division #airheadsconf
  • 35. Ant-2x2-5010 Simple projection 90 105 75 120 60 a 135 45 150 30 165 15 180 0 195 345 210 330 225 50m 200 m 100 m 315 240 300 a 255 270 0m 285 20m 5 dB per division Assuming 20m install height 35 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 35 #airheadsconf
  • 36. Analysis • The heatmaps are shown across 100m by 100m and 1000m by 1000m areas • These are flat earth models and the antenna is straight up above the plane • 2 ray propagation effects are not included 36 CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 36 #airheadsconf
  • 37. Heat Map: Antenna at 5 m height C/I Contours C/I Contours 100 m 1000 m CI 37 CI dBm CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 37 dBm #airheadsconf
  • 38. Heat Map: Antenna at 10 m height C/I Contours C/I Contours 100 m 1000 m CI 38 CI dBm CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 38 dBm #airheadsconf
  • 39. Heat Map: Antenna at 20 m height C/I Contours C/I Contours 100 m 1000 m CI 39 CI dBm CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 39 dBm #airheadsconf
  • 40. Heat Map: Antenna at 40 m height C/I Contours C/I Contours 100 m 1000 m CI 40 dBm CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved CI 40 dBm #airheadsconf
  • 41. 5 GHz Client Rate vs. Range to 600m CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 41 #airheadsconf
  • 42. Bridging - Courtyard Example Customer Example – Access Silicon Valley High-Tech Campus Ultra-High Density Plaza CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 42 #airheadsconf
  • 43. Customer Requirements • Association capacity = 3,000 devices – Dual band (2.4 GHz and 5 GHz) client access – Heterogeneous mix of make / model / WNIC devices • Active Users = 33% of associated devices • Leverage existing controllers & AirWave • Minimize interference with the indoor network CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 43 #airheadsconf
  • 44. Coverage Zone - Overhead CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 44 #airheadsconf
  • 45. 3D Model of RF Coverage Solution • • • • 12 APs mounted to parapets of 3 buildings Highly directional D607 sector antennas 60°H x 60°E Combined mechanical & electrical tilt = 30° 3D model on right shows -55dBm cell edge CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 45 #airheadsconf
  • 46. Installation View from Ground CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 46 #airheadsconf
  • 47. Building 1 Close-up CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 47 #airheadsconf
  • 48. Building 1 Installation CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 48 #airheadsconf
  • 49. Building 2 Closeup CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 49 #airheadsconf
  • 50. Aggregate Coverage SNR 2.4 GHz CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 5 GHz 50 #airheadsconf
  • 51. Bridging Case Study Customer Example – Simple Bridging K – 12 School Campus Temporary Remote Classroom Backhaul CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 51 #airheadsconf
  • 52. Bridging for Campus LAN’s • Simple products and simple installations – MST-200 (AirMesh) installed by today’s integrators – Typically - mounting rights require no extra permissions • Bridging transparently extends ArubaOS – Outdoor network is transparent to Aruba controllers and AP’s – Role based users and existing policies simply extended – Spanning Tree Algorithm used to prevent broadcast loops CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 52 #airheadsconf
  • 53. Terminology - Point to Point Bridging CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 53 #airheadsconf
  • 54. Terminology - Point to Multi-point CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 54 #airheadsconf
  • 55. Simple Outdoor Point to Multi-Point • Portable Classrooms require network access – Trailers change location and number yearly - wireless is a fit! CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 55 #airheadsconf
  • 56. Outdoor Bridging – MST 200 ① ② 1 Console Interface CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 2 56 POE IN Ethernet Interface #airheadsconf
  • 57. Main School – Portal Installation • Simple products and simple installations – MST-200 (AirMesh) can be installed by today’s integrators • Key Design Considerations – Channel assignment / re-use CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 57 #airheadsconf
  • 58. Mobile Classroom - Installation CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 58 #airheadsconf
  • 59. Simple Outdoor Point to Point • Use Buildings to isolate RF for channel re-use – Portals face trailers but below roof-line to avoid ACI / CCI CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 59 #airheadsconf
  • 60. Capacity Planning • For maximum capacity we need channels – Use 20 MHz channels not 40 MHz - more channels available • Example of 20 trailers in one area: – ~80 Mbps of TCP good put out to a several hundred yards – ~80 / 20 = Four Trailers per channel = ~20 Mbps per trailer • Node to node contention factors – Consider one portal and four remote trailers = 5 nodes – The 20 Mbps per trailer now drops 20% = ~70 Mbps – At 10 nodes per channel expected throughput = ~60 Mbps CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 60 #airheadsconf
  • 61. Aruba MIMO Antennas – Range Test CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 61 #airheadsconf
  • 62. RF Installations Outdoor Installation Best Practices Real mistakes you should be sure to avoid! CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 62 #airheadsconf
  • 63. Improperly Aimed Omni Antennas Omni antennas MUST be mounted perpendicular to the ground. CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved Omnis are NOT yagis (or magic wands!) You do NOT point them at the target. 63 #airheadsconf
  • 64. Connecting Only 1 Antenna • The previous photos also show only 1 antenna connected to the radio. • Aruba regularly is asked by customers whether it is really necessary to hook up both antennas. – Especially when upgrading old SISO gear to MIMO gear. • MIMO systems are designed to have 2 (or more) active radio chains for both TX and RX. • TX power is cut in half by not connecting an antenna on the 2nd radio chain. • This reduces range by 30% and coverage area by 50%. CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 64 #airheadsconf
  • 65. Correct Omni Antenna Installation • Omnis must be installed perpendicular to the ground. • Both antenna chains MUST have an antenna connected. • For max performance you MUST use one H-pol and one V-pol omni antenna. • These are sold in pairs by Aruba. CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 65 #airheadsconf
  • 66. Improperly Aimed Sector Antennas • The example on the left has the antenna aiming straight at the post, blocking the signal! • The example on the right has the antenna aimed at the sky instead of the ground where clients are. CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 66 #airheadsconf
  • 67. Bending / Damaging RF Cable • Many cabling companies do not have experience with low-loss RF cable such as LMR or Heliax • This installer bent the cable at 45 degrees at a building penetration. • ANY damage to the geometry of a coaxial cable reduces its performance and increases loss. CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 67 #airheadsconf
  • 68. Improper Antenna Separation Omni antennas should not be placed directly against walls. This results in adverse changes to the pattern, as well as wasted signal absorbed into the structure. CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 68 When co-locating multiple antennas in an array, minimum horizontal and vertical separation distances MUST be computed to avoid having adjacent-channel interference take out all of the links #airheadsconf
  • 69. Water Ingress • Antenna radomes are not usually sealed. They have holes at the bottom designed to vent condensation and other water accumulation. • NEVER face the weep holes straight up – the antenna will fill with water the first time it rains! • NEVER face a panel antenna straight down for the same reason (unless it is designed for this such as the AP-ANT-90) CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 69 #airheadsconf
  • 70. Last, but not least… Do not place antennas and enclosures immediately behind F-18 jet engines! CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 70 #airheadsconf
  • 71. CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 71 #airheadsconf
  • 72. Thank You CONFIDENTIAL © Copyright 2013. Aruba Networks, Inc. All rights reserved 72 #airheadsconf