wireless planningwireless planning fundamentals - · pdf filewireless planningwireless...

Wireless PlanningWireless Planning Fundamentals

Todd HathawayMASE Network InfrastructureMASE Network InfrastructureSolutions Architect, HP [email protected]

©2011 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice

WLAN deployment challenge

How many APs do I need to meet my

Should I plan for coverage or

capacity and coverage needs?

capacity? Can I do both?

H V IPHow many VoIP calls can I support?

Where do I place my APs? Which channels should be used?

How many sensors do I need for intrusion prevention and location tracking?

How many sensors do I need for detection?

WLAN planning goals: coverage vs. capacity

Two incongruent, but not mutually exclusive goals


WLAN coverage: key factorsDevice properties

2.4/5 GHz

Environment properties

Tx power

λ << d Shadowing

λ >> d λ ~ d Refraction Reflection Diffraction Scattering

n

RTTR ddBiGdBiGdBmPdBmP

4+++=

πλlog10)()()()(

WLAN coverage goal: data rates• Distance at which threshold signal level (threshold link speed) can be

achieved545448 “waterfall” curve36

24ta ra

te

bps)

18126

Dat

(Mb

Distance

(dBm)

Traditionally coverage has been the main goal for WLAN planning butWLAN planning, but…• 802.11 has grown from an exclusive technology to a plug-and-play

technologytechnology

• Enterprises are relying heavily on WLAN for instant and obvious benefits

Users are expecting wire like performance for their applications• Users are expecting wire-like performance for their applications

Capacity goals can be varied#1 Maximum number of data bits the network can

carry per unit time (= maximum throughput)0 1

000 0

0

011111

1 1100

00

0

1 0 100

0 0

0

011111

1 1100

00

0

1

#2 Number of active users that can be supported

00

01110

001

11

11

111

1 100 0

00

0000

0

0can be supported

#3 Number of simultaneous VoIP calls that can support with acceptable quality

11

111

1 100 0

00

0000

0

0with acceptable quality

#4 Threshold throughput per user


Wireless and “Magical” Thinking

So you want to design a Wireless NetworkWireless and “Magical” Thinking

Most people’s experience of wireless is consumer-based• Go to the local “big box” store• Buy a wireless router• Bring it home• Plug it in• Voila! It just “works”• That’s fine for your 2,000 square foot 3 BR / 2 BA home, but things are different if your “house” is

75,000 square feet and routinely has 6,000 kids over every day who all need network services at the same time (typical Midwestern High School)( yp g )

• Large-scale wireless networking is unavoidably more complex than the typical consumer experience

© Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.8

Wireless and “Magical” Thinking

So you want to design a Wireless NetworkWireless and “Magical” Thinking

WiFi is a largely misunderstood technology• If you will likely need tens, if not hundreds, of APs to provide a decent signal in all the places people

are likely to want a wireless connection and expected to support several hundred guests wanting to use it at the same time it’s a question of scale, just like it’s one thing to buy a small SOHO router with a few integrated LAN ports and another thing entirely to build out an effective Campus LAN or a multinational enterprise Wide Area Network (WAN) to connect several tens of large Campus LANs.

Shared communications channel• The first thing to understand is the key high-level differences in the media. Radio Frequency (RF) is,

by its very nature, a shared media channel (all receivers on the frequency within reception range can hear a single transmitter while it’s transmitting) and shared media channels must perforce be halfhear a single transmitter while it s transmitting) and, shared media channels must perforce be half-duplex (I talk, you talk, I talk, etc. as there can only one transmitter on the frequency at a time). In that way, Wireless LANs are very much like Wired LANs based on hubs.


So you want to design a Wireless NetworkWireless Fundamentals

• A Wi-Fi connection is composed of two simplex radio links, AP->Client and Client->APE h di li k i d f

Wireless Fundamentals

• Each radio link is composed of:− Transmitter− Cable between transmitter and transmit

antennaantenna− Transmit antenna− Distance between transmit and receive

antennae− Receive antenna− Cable between receive antenna and receiver− ReceiverWhile not technicall part of a link ambient noise


• While not technically part of a link, ambient noise must be taken into consideration too



• Access Points (APs) typically have both higher maximum transmit power levels and greater receive sensitivity than WiFi clients, particularly BYOD class devices.WiFi diff R di F “b d ” 2 4 GH (802 11b/ / ) d 5 GH• WiFi uses two different Radio Frequency spectra or “bands,” 2.4 GHz (802.11b/g/n) and 5 GHz (802.11a/n).

• Free Space Loss, or how much the signal strength will attenuate over a given distance, is different for the two frequency bands




• Radio power levels are measured in decibels (dB).• dB are a relative measurement

+3 dB = twice the power-3 dB = half the power+6 dB = four times the power6 dB f th th-6 dB = one-fourth the power

+9 dB = eight times the power-9 dB = one-eighth the power+10 dB = ten times the power+10 dB = ten times the power-10 dB = one-tenth the power+30 dB = 1024 times the power-30 dB = 1/1024th the power


p

WLANs: frequency spectrum of operation

• Unlicensed bands in United StatesISM: Industrial Scientific and Medical– ISM: Industrial, Scientific, and Medical

–UNII: Unlicensed National Information Infrastructure83.5 MHz

ISM UNII

2.4 GHz2.4835 GHz 5.15 GHz 5.825 GHz2.4835 GHz 5.825 GHz

802.11b/g 802.11a

Note: Different subsets between dashed lines are allowed in different countries for unlicensedNote: Different subsets between dashed lines are allowed in different countries for unlicensed WiFi

WLAN coverage: free space RF propagation model

PR 2 λPR

PTd

4=

dGGPP RTTR π

λPT

d

Also known as Friis free space formula

• Signal diminishes as inverse square of distance

• High frequency signal diminishes faster than low frequency signal

• Note: 5GHz is now preferred, but coverage is not as good as 2.4

So you want to design a Wireless NetworkP C l l t d F S L b F f S l t d Di tPre-Calculated Free Space Loss by Frequency for Selected Distance

Distance / Free Space Loss 2.4 GHz 5 GHz

1 foot -29.8 dB -36.1dB

45 73 feet -39.3 dB -45.7dB

5 feet -43.7 dB -50.1 dB

7 feet -46.7 dB -53.0dB

10 feet -49.8 dB -56.1dB


15 feet -53.3 dB -59.6dB

So you want to design a Wireless NetworkPre Calculated Free Space Loss by Frequency for Selected Distance (continued)Pre-Calculated Free Space Loss by Frequency for Selected Distance (continued)

Distance / Free Space Loss 2.4 GHz 5 GHz

20 feet -55.8 dB -62.1dB

64 125 feet -57.7 dB -64.1dB

30 feet -59.3 dB -65.7dB

50 feet -63.7 dB -70.1dB

100 feet -69.8 dB -76.1dB


300 feet -79.3 dB -85.7dB

What’s the takeaway?

So you want to design a Wireless NetworkWhat’s the takeaway?

• With approximately 6 dB greater loss over the same distances, 5 GHz-based signals provide about one-fourth the coverage area as 2.4 GHz-based signals do (in wide-open spaces with no obstructions)!obstructions)!

• 5 GHz-based signals are also often more severely impacted by the Fresnel zone encroachments than 2.4 GHz-based signals.− Fresnel Zone -The area around the visual line-of-sight between a radio transmitter and receiver.

Since radio waves disperse as they move away from a transmitter, obstructions in the Fresnel zone, such as buildings and trees, will attenuate or reflect the signal, such that the intended receiver may not collect an adequate radio signal for reliable communication.

• So why would anyone want to use 5 GHz-based signals? Hold that thought until we get to AvailableSo why would anyone want to use 5 GHz based signals? Hold that thought until we get to Available Radio Channels and Co-Channel Interference.


Materials Impact Signal Propagation

So you want to design a Wireless NetworkMaterials Impact Signal Propagation

• There’s not much published research on the absorption of RF energy at different frequencies by different materials, but what there is for some common materials will be presented.Th bli h d h d ’ b i b h b di b i ll bil b di• The published research doesn’t cover absorption by human bodies, but as essentially mobile bodies of water supported by metal endo-structures (calcium bones) they do have an effect.

• There is also no measured value for reinforced concrete in the published research, but it should be considered to be some combination of the values for:− Red brick, Stucco, or Cinder block, and Diamond mesh (wires in glass, like in some hospital door

windows)− Concrete would be similar to the first three and the reinforcement metal bars would behave

somewhat similarly to the Diamond mesh (acting as an antenna and dissipating large amounts ofsomewhat similarly to the Diamond mesh (acting as an antenna and dissipating large amounts of the RF energy, but without the smaller distances between the metal lines that decrease the chances of a wavelength penetrating the material without hitting the metal portion)


So you want to design a Wireless NetworkP bli h d R h L V l b M t i l b Fhttp://www.ko4bb.com/Manuals/05)_GPS_Timing/E10589_Propagation_Losses_2_and_5GHz.pdf

Published Research Loss Values by Material by Frequency

Material / Loss by Frequency

2.4 GHz 5 GHz

7.1 mm Plexiglass ~0.4 dB ~0.9 dB

Red brick ~4.5 dB ~14.6dB

Glass ~0.5 dB ~1.7 dB

12.8 mm Drywall ~0.5 dB ~0.5 dB

Fir lumber ~2.8 dB ~6.1 dB


So you want to design a Wireless NetworkP bli h d R h L V l b M t i l b F ( ti d)Published Research Loss Values by Material by Frequency (continued)

Material / Loss by Frequency

2.4 GHz 5 GHz

Particle board ~1.7 dB ~2.0 dB

Plywood ~1.9 dB ~1.8 dB

Stucco ~14.8 dB ~13.6 dB

Cinder block ~7.0 dB ~11.3 dB

Diamond mesh (wires in glass, like in some hospital door

i d )~21.0 dB ~13.2

dB


windows) dB

Channel map 2.4 GHz band

• Total of 11 channels of which 3 are non-overlappingChannel width = 20 MHz–Channel width = 20 MHz

–Channel separation = 5 MHz1 2 3 4 5 6 7 8 9 10 11

5 GHz (802 11a/n) 40 MHz Channels

So you want to design a Wireless Network5 GHz (802.11a/n) 40 MHz Channels

− One of the key things that gives 802.11n its greater performance is the use of pairsperformance is the use of pairs of 20 MHz channels “bonded” into 40 MHz channels (the other is multiple spatial streams)streams)

− There are 9 non-overlapping 40 MHz channels approved for use in the U.S. (pairs using 120 124 d 128 t120, 124, and 128 not available)


Channel map in 5 GHz band• Total of 23 channels

– Channel width = 20 MHz

– Channel separation = at least 20 MHzChannel separation at least 20 MHz

Portion of Band Channel Numbers Channel Center Frequencies Output Power

UNII-1/Lower (5.150 to 36, 40, 44, 48 36: 5.180 GHz 40 mW5.250 GHz) 40: 5.200 GHz …

48: 5.240 GHz

UNII-2/Middle (5.250 to 5 350 GHz)

52, 56, 60, 64 52: 5.260 GHz … 200 mW5.350 GHz) 64: 5.320 GHz

UNII-3 (5.470 to 5.725 GHz)

100, 104, …, 140 52: 5.500 GHz …

64: 5.700 GHz

200 mW

UNII-4/Upper (5 725 to 149 153 157 161 149: 5 745 GHz 800 mWUNII 4/Upper (5.725 to 5.825 GHz)

149, 153, 157, 161 149: 5.745 GHz …

161: 5.805 GHz

800 mW

WLAN channel allocation

I ti ll t i h lik thi In practice, cells are not nice hexagons like this They are significantly distorted due to antenna properties and

environmental factors


So you want to design a Wireless Network2 4 GHz (802 11b/g/n) Channels

− In order to avoid or minimize Co-Channel Interference we want to ensure that no cell using the same radio channel overlaps

2.4 GHz (802.11b/g/n) Channels

using the same radio channel overlaps− A good metaphor is to imagine being required

to completely cover a surface using three different colors of circles with the rule that no t i l th t th l ll dtwo circles that are the same color are allowed to touch each other

− The visualization is often referred to as a “channel map”


So you want to design a Wireless Network5 GHz (802 11a/n) Channels

− In order to avoid or minimize Co-Channel Interference we want to ensure that no cell using the same radio channel overlaps

5 GHz (802.11a/n) Channels

using the same radio channel overlaps− The illustration uses seven different 20 MHz

channels− The 5 GHz channel map typically looks very

different than the 2.4 GHz channel map


Co Channel Interference

So you want to design a Wireless NetworkCo-Channel Interference

A 130 Mbps associated data rate (802.11n 20 MHz channel) really means, conservatively, ~60 Mbps of full-duplex throughput to be shared.

T i ll h bi f i f• Typically, the biggest factors governing performance are:− Co-Channel Interference− User Density

Per User Bandwidth/Throughput Needs− Per-User Bandwidth/Throughput Needs− Cell Size− Flow destinations

• Co-Channel Interference is when two or more APs are using the same radio channel and can “hear” geach other, creating a combined group of associated WiFi clients on the same channel that must all compete for air time on the common, shared radio channel. It’s a performance killer! Think of a meeting with 10 participants all waiting for a moment of silence so they can jump in and say something. Now double that to 20 participants and consider how much less each person will get the


g p p p gchance to say.

Planning Guidelines

So you want to design a Wireless NetworkPlanning Guidelines

• User Density is a function of the Floor Plan and simply means how many users, on average and at peak times, associate to any given AP radioP U B d id h/Th h N d b li i i d id ll d i• Per-User Bandwidth/Throughput Needs vary by application mix and are ideally measured, e.g. using TCPView and Wireshark (or something similar, more on this later)

• Cell Size is essentially how big are the different colored circles− governed by the transmit power levels of each AP’s radio(s), and driven by both User Density andgoverned by the transmit power levels of each AP s radio(s), and driven by both User Density and

Per-User Bandwidth/Throughput Needs. − Example: 35 students in a ~250 sq. ft classroom that each need 2 Mbps of Per-User

Bandwidth/Throughput on 802.11g (2.4 GHz radio)H 2 4 GH 802 11 di h ld i thi l t d li t bl d• How many 2.4 GHz 802.11g radios should service this classroom to deliver an acceptable end-user wireless experience?


Design Steps Summary

So you want to design a Wireless NetworkDesign Steps-Summary

Create solution design that will meet elicited requirements given known constraints• Understand aggregate required applications per-user bandwidth / throughput needs and user density

in order to determine cell size (to control number of users per radio by controlling strength of signal, causing clients to associate to closest / best signal strength BSSID)

• Design for 5 GHz coverage and adjust 2 4 GHz radio power down to eliminate / minimize Co• Design for 5 GHz coverage and adjust 2.4 GHz radio power down to eliminate / minimize Co-Channel Interference

• Assign non-overlapping 2.4 and 5 GHz channels to physically adjacent radios in the same spectra in APs

• Turn OFF 2.4 GHz radios as needed• Architect around non-WiFi interference sources, e.g. 2.4 GHz cordless phones, microwaves, wireless

video cameras, etc., that, for business reasons, could not be removed from the environment


Why HP NetworkingWhy HP NetworkingWireless


HPN Wireless Leadership and Innovation#2 vendor Worldwide in Wireless LAN shipments• 448,000+ units shipped globally in CY2010

Mobility innovations and differentiatorsMobility innovations and differentiators• Optimized Architecture

– Maximum flexibility in supporting mobile business applications today and in the future at the lowest TCO

• First in the industry to offer near Gigabit Ethernet (Dual 450Mb/s radios) WLAN client access• First in the industry to offer near Gigabit Ethernet (Dual 450Mb/s radios) WLAN client access– Market leading RF performance

• Wired and wireless networking in-wall device– In room solution for delivering advanced IP services

• Multi-media application support– Multicast patent, Application based QoS

11/21/201231

The HP Networking Mobility Architecture

MSM Distributed Architecture• Source-to-destination traffic forwarding w/

central mgmt:

– No single point of failure– User Traffic dropped local to Access Point

Guest traffic securely routed to Controller– Guest traffic securely routed to Controller– Lowers application latency– Consumes minimal core LAN switch ports– No need to purchase additional controllerNo need to purchase additional controller

capacity – Eliminates performance bottlenecks– Simple straight forward configurationg g

Centralized WLAN Controllers – More $$$$

All t ffi t l th h• All traffic travels through controller:

• Single point of failureg• Application latency

• VoIP Performance Concerns• Inefficient use of the infrastructure

• Controller Performance (Growth)• 50 Access Points each 450Mbps p

per radio equals 22 Gbpsthrough controller

MSM Series Mobility Portfolio

MSM400 SeriesMSM 765zl Controller IMC 5.1 RF Manager 6.0

Infrastructure ControlControllers Access points

Management, additional devices Security

Single & Dual Radio 11n 3x3, PoE

MSM 760 Controller

40-200 AP’s and 2000 Guests Device Management Tool

RF Planner 5.0

Wireless IDS/IPS for A & series

MSM 317 MSM 415 RF Sensor

MSM300 Series

40-200 AP’s and 2000 Guests Frequency coverage planning tool

Client Bridge

Single Radio 11b/g, Wall Jack, PoE

Guest Management Software

RF Security Sensor a/b/g/n, PoE

MSM720 Controller

MSM100 Series

Single, Dual & Triple Radio 11a/b/g, PoE

MSM 710 Controller

Client Bridge a/b/g

Outdoor Bridge

Guest Access and Control

IDM Identity Driven Manager

10-40 APs and 250 Guests

34

Single Radio, Indoor, PoE 10 AP’s and 100 Guests Dual Radio Outdoor Bridge a/b/g/n Access Control Policy Management

Controller PositioningMSM 800 AP Solution• Series 5400zl Chassis

S t t 800 A P i t i (4) MSM765 l d l

Blade: flexible capacity

MSM765 Premium Mobility Controller• Modular format supports larger environments needing to

reduce HW footprint• Same feature set as MSM760 Premium Mobility Controller

• Supports up to 800 Access Points via (4) MSM765zl modules• Teaming with N+1 redundancy (5 modules/ 2 chassis) • Redundant power supplies

paci

ty

Appliance: flexible capacity

p y

MSM760 Premium Mobility & Access Controller• 40-200 access points• 2000 simultaneous guest access users• **Support for L3 roaming services • **Teaming and failover support (max 5 MSM760’s) and 64 VSC profiles

Cap Appliance: flexible capacity

MSM720 Premium Mobility & Access Controller• 10-40 access points and up to 40 in a Team• 250 simultaneous guest access users• **Support for L3 roaming services

**Teaming and failover for mid market (max 2 MSM720’s) and 64 VSC profiles

Appliance: fixed capacity• 10 access points and/or access devices• 100 simultaneous guest access users• Support for 16 VSC profiles

MSM710 Mobility* & Access Controller

• Teaming and failover for mid market (max 2 MSM720 s) and 64 VSC profiles

Support for 16 VSC profiles• *Support for L3 roaming services

35

•= Requires Mobility Services option•** = Requires Premium Mobility option

802.11n Access Point PositioningFeature MSM466-R MSM466 MSM460 MSM430 MSM410Dual 802.11n radios Yes Yes Yes Yes No

IEEE 802.3af PoE Yes Yes Yes Yes Yes

High-performanceDual core processors

Yes Yes Yes Yes No

Number of transmitters/ 3x3 3x3 3x3 3x3 3x3transmitters/receivers

3x3 3x3 3x3 3x3 3x3

Number of spatial streams 3 3 3 2 2

Max performance 450 Mbps/radio 450 Mbps/radio 450 Mbps/radio 300 Mbps/radio 300 Mbps/radio

Antenna External External Internal Internal Internal

Concurrent 5GHz support Yes Yes No No No

Lifetime warranty 1 year Yes Yes Yes Yes

Li t i $ $ $ $ $

36

List price $1999.00 $999.00 $999.00 $699.00 $499.00

Dual Radio Indoor 802.11n APs• Full MSM AP feature set

– Powered by 802.3af PoE

– Up to 200mW EIRP output powerUp to 200mW EIRP output power

– AP, Mesh and Monitor (packet capture) modes

– LEDs for visual indication of unit health• Power, LAN, Radio 1, Radio 2

– 0-50°C operating temperature

– Embedded or external antenna option

– Plenum-rated

• Low profile, unobtrusive design– Flexible ceiling and wall mounting options

– Range of physical security features

37

– ‘Quiet’ LEDs

Dual Radio 802.11n APs: Summary• Dual radio 802.11n APs

– MSM430: 3x3:2, integrated 4/7dBi antennas

– MSM460: 3x3:3, integrated 4/7dBi antennas, g

– MSM466: 3x3:3, six RP-SMA connectors

– MSM466-R: 3x3:3, six N Type connectors

• New RF optimization features– Standards-based beam forming (Explicit)

– Band steering

– Concurrent radio operation in 5GHz band (MSM466/466-R)

• Outdoor Enclosure– MSM466-R

– Directional and Omni-Directional Outdoor Antennas

38

– Embedded heater for low temperature operation

MSM466-R: Customer Target Markets & Solution

• Addresses multiple vertical markets, such as Healthcare, Hospitality, Education,and other Enterprise environments

Benefits

and other Enterprise environments

• Ideally suited for

– Outdoor deployments such as campus courtyard stadiums or where wired connections are not– Outdoor deployments, such as campus courtyard, stadiums, or where wired connections are notfeasible to implement or cost prohibitive

– Point to point or point to multipoint wireless communications can be made to establish Wi-Fi connectivityto remote buildings

• Performance to replace 100M or T3/DS3 dedicated lines at a fraction of the price

• Point to point distances of greater than a miles

39

MSM466-RDelivering the highest performing dual radio 802.11n outdoor AP• MSM466-R AP feature set

– Powered by 802.3af or 802.3at PoE*– AP, Mesh and Monitor (packet capture) modes– Six N Type Connectors– Flexible pole and wall mounting options

• Environmental design features• Environmental design features– IP67 and NEMA 4X rated, providing protection against water intrusion and salt fog damage– Waterproof

• Ethernet PoE connector kit

• Reset to Factory buttonReset to Factory button

• LEDs for visual indication of unit health

– Power, LAN, Radio 1, Radio 2

– - 40°C* to 55°C operating temperature– Embedded heater

40

* Operation under -20°C requires 802.3at PoE

Examples of Local Mesh Configuration• Local Mesh extends wireless to areas where Ethernet is not available

– Inside hotels, factories, hospitals, outdoor campus, LAN bridge between buildings – Self-healing links, self-optimizing links, multiple egress gatewaysSelf healing links, self optimizing links, multiple egress gateways– Multiple configuration options for wireless access and backhaul

Extension of wireless coverage through local meshWireless Links Wireless LinksWireless Links Wireless Links

Connecting wired networks over local mesh

Wireless Links

Outdoor 3x3 MIMO Antennas• Support for a range of deployment scenarios

– Indoor or outdoor use

– High user densities e.g. lecture hallg g

– Point-to-point and Multipoint communication

– Installation in enclosed spaces

SKU Type Band Gain Suitable for outdoor useJ9169A Narrow Beam Sector, 3 Element 2.4GHz/5GHz 8dBi/10.7dBi J9170A Directional, 3 Element 2.4GHz/5GHz 10.9dBi/13.5dBi J9719A Omnidirectional, 3 Element 2.4GHz 6dBi J9720A Omnidirectional, 3 Element 5GHz 8dBi J9171A Omnidirectional, 3 Element* 2.4GHz/5GHz 3dBi/4dBi J9659A Omnidirectional 6 Element* 2 4GHz/5GHz 2 5/5 9dBi

42

J9659A Omnidirectional, 6 Element 2.4GHz/5GHz 2.5/5.9dBi Note: Antenna usage may be limited in some countries.* Indoor antennas have RP-SMA connectors, while outdoor antennas have N Type connectors

Wireless Wall Jack

11/21/201243

HP Networking & Mobility Summary• Single pane-of-glass management

– Centralized configuration of multiple access points across the enterprise– Support for up to 2,500 mobility devices

Wi lik f• Wire-like performance– First Wi-Fi certified GbE WLAN client access (MSM46x)– Delivers 50% increase in user density/performance via three spatial-stream dual 802.11n– Wire-like delivery of multi-media applications, SaaS and cloud services

U ifi d t l• Unified access control– Consistent access control solution across wired/wireless network

• Wireless IDS/IPS– Provides continuous vulnerability protection – Ensures compliance with industry regulations (SOX, HIPAA, PCI) through comprehensive reporting

• Lower TCO– Uses existing HP MSM mounting hardware , controller and IDS/IPS– HP’s industry-leading lifetime warranty with next-day replacement– Training and support for only one management application

11/21/201244

HP RF Planner: HP Wireless Site Planning• Unique, patent-pending RF propagation model

• Imports TIF, JPEG or BMP floor plansAP

Coverage• Graphical display of wireless LAN spillage

• Security coverage modeling

• Drag and drop functionality Sensor• Drag-and-drop functionality

• Outdoor modeling capability

• Generates equipment lists that speed deployments

SensorCoverage

q p p p y

• Eliminates over provisioning

• Planning and device placement information can be Spillage

Viewimported into HP RF Manager simplifying deployment

HP Networking Confidential

RF Planner

RF Planner system requirements

Hardware Requirements

P Intel P4 x86 architecture platformProcessor Intel P4 x86 architecture platform (or equivalent)

Processor Speed 1.4 GHz (minimum)

Memory 1 GB (minimum)Memory 1 GB (minimum)

Hard Disk 100 MB

Screen Resolution 1024 x 768 (recommended)

Software Requirements

Operating System Windows 7 (32/64-bit), Windows 2000, XP, Vista


Workflow

R i tWiFi

Site Layout

Formatted Site Layout

iRequirements Capture

Site Model Preparation

WiFi Planning Service

Input formSite Model

Site Model Preparation

Site Image Conversion

Re-Plan (Optional)

RF MapsPlanningReport

RF Maps

RF PlanningPackaging Deliverables

Site calibrationCustomer


Report

WLAN planning stepsRequirements capture•Site information•Planning requirements

Site image conversion•Image file format•Dimension units

Site model preparation•Modeling checklist•Model layoutg q

•Device details•Output mode

File format• AUTOCAD

Site information• Layout

•Site image size•Site geometry

•Building material•Assumptions

Modeling checklist• jpg or gif image or AutoCAD• AUTOCAD

• Image: .jpg or . gif Verify dimension

• Objects of known size• Consistent units

Layout• Building material

Planning requirements• Security and/or Network• Indoor and/or Outdoor

.jpg or .gif image or AutoCAD• Dimensions are available

Model layout• Floor by floor• Draw all objects for image file

Image Size• Max 1500x1000 pixels

Site geometry• Perimeter

M lti l fl

Security planning goals• Detection, Prevention, Location

tracking Network planning goals

• Coverage and capacity

• Remove stray objects• Define object building material

Building materials• Cover every high loss material• Approximate unknown materials


• Multiple floors• Correct layers in AutoCAD

Device details• AP model and antennas

Approximate unknown materials State any assumptions

WLAN planning steps (contd.)RF planning•RF parameter selection•Security planning

Packaging deliverables•Bill of material•Consolidated reportS f

Site calibration•Measurement•Regenerate RF Views

•Network planning•Device selection

Bill of material

•Specific RF maps•SGP/SGE files

RF parameter selectionS it l i

MeasurementG t lib ti i t• Number of devices needed

Consolidated report• Specific RF maps

Other files• SGP files (.spm)

Security planning• Sensor Placement

(Detection/Prevention/Location tracking)

Network planning

• Generate calibration points• Measure actual signal

Regenerate RF Views

SGP files (.spm)• SGE import files• Maximum coverage

• Minimum interference• Meet capacity goals

Ensure enough redundancy


Key features

• Flexibility to use images or AutoCAD files

• Ease of modeling–Ability to scale the entire floor plan by defining distance between any two points–Ready-to-use repositories of modeling components; scope to create custom-definedReady to use repositories of modeling components; scope to create custom defined

models

• Regional RF regulatory compliance

• Full 802.11n support

• WLAN planning wizard–Capacity and coverage planning

Key features (contd.)

• Auto AP placement and channel allocation

• Live RF calibration

• Cross-floor spillage

Ri h RF i• Rich RF views

• What-if analysisWhat if analysis

Benefits

Minimize Security Risk

Plan 802.11n MigrationSecurity Risk Migration

Unlimited What-ifBenefitsProvide Visibility

Unlimited What if AnalysisBenefits

Maximize ROI

Reduce CAPEX

Reduce OPEX


Reduce CAPEX

Finding the Manual…

RF Planner User Guide:

• http://h20000.www2.hp.com/bizsupport/TechSupport/CoreRedirect.jsp?redirectReason=DocIndexPDF&prodSeriesId=3836482&targetPage=http%3A%2F%2Fbizsupport1 austin hp com%2Fbc%2Fdocs%2Fsupport%2FSupportManual2Fbizsupport1.austin.hp.com%2Fbc%2Fdocs%2Fsupport%2FSupportManual%2Fc03357360%2Fc03357360.pdf

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