may 2000 deploying the optimal bwa architecture ptp vs. ptmp broadband wireless world forum 2001...
TRANSCRIPT
May 2000
Deploying the OptimalDeploying the OptimalBWA ArchitectureBWA Architecture
PTP vs. PTMPPTP vs. PTMP
Broadband Wireless
World Forum 2001
Rami HadarRami HadarExecutive Vice PresidentExecutive Vice PresidentMarketing & Business DevelopmentMarketing & Business Development
Point to PointPoint to Point
Star ConfigurationStar Configuration
Ring ConfigurationRing Configuration
Point to PointPoint to Point
Advantages Proven Technology High Capacity Lower Up-front Investment
Disadvantages Dedicated bandwidth to a single location . Star configuration: emulates PMP, but antenna
placement becomes an issue and business case fails after 8-10 links
Ring configuration: emulates a fiber ring. Adding new nodes takes 3 building climbs
2 x #subscribers network componentsOptimal for high bandwidth to aOptimal for high bandwidth to a single location single location
Point to Multipoint ConfigurationPoint to Multipoint Configuration
Advantages Real-time allocation of bandwidth based on user
demand Oversubscribe equipment and frequency = Lower
CapEx Central base stations aggregates & concentrates
traffic from many subscribers. Smaller hub roof space used No need for external concentration device Roof climbs = # subscribers + 1
# of subscribers +1 network elements
Disadvantages Higher upfront cost than PTP Bandwidth to a single building < 45Mbps
Point to MultipointPoint to Multipoint
Optimal access method to small and Optimal access method to small and medium sized buildingsmedium sized buildings
Cost Comparisons: CapExCost Comparisons: CapEx CapEx Required to deliver identical Services/Revenue
Point to Point (based on industry averages)
Equipment DS3 Radio: $20,000 IAD (needed for each link): $5,000 ATM Switch (needed for each “Hub” Building): $30,000
Install Each link (two buildings, cover ATM as well): $10,000
Point to Multipoint (based on industry averages)
Equipment Base Station: $200,000 CPE: $6,750 ADM (needed for Fiber Connection) : $15,000
Install Base Station: $20,000 CPE: $5,000
Confidential and Proprietary
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$100.0
$200.0
$300.0
$400.0
$500.0
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$800.0
1 3 5 7 9 11 13 15 17 19
Building On-Net (Links)
Co
st (
Th
ou
san
ds)
Point to Point Point to MultiPoint
CapEx Cost CurveCapEx Cost Curve
9 Link Cross9 Link CrossOver PointOver Point
Semi-Urban Mid Size CitySemi-Urban Mid Size City
Cell Coverage: 150 km2 Rain Region: D Population: 380,000 117 buildings* with 25,000 ft2 or
more (requiring >3Mbps Access ) Average of 4 Business per
Building 9% Penetration Rate of
Addressable Market (Businesses) by the End of year 3
Average 2 ports per customer 5% price decline every year 10% customer churn rate
30 Buildings Serviced by end of year 3
Confidential and Proprietary
* U.S. Department of Energy
Year 1 Year 2 Year 3 TotalBuildings Added 15 5 10 30
PTP* $585,000 $175,000 $380,000 $1,140,000
PTMP $400,000 $60,000 $120,000 $580,000
Large Urban DowntownLarge Urban Downtown
Multiple Cell coverage: 500 km2 Rain Region: N Population: 14,000,000 1250 buildings averaging 50,000 ft2 or more (requiring 4 Mbps
of Bandwidth or more) Average of 20 Business per Building 6% Penetration Rate of Addressable Market (Businesses) by
the End of Year 3 Average 1 ports per customer 10% price decline every year 10% customer churn rate
306 Buildings Serviced by end of year 3
Confidential and Proprietary
* United Nations/Private Commercial Study
Year 1 Year 2 Year 3 Total
Buildings Added 136 119 51 306
PTP* $5.1M $4.5M $1.9M $11.5M
PTMP $4.2M $0.2M $0.1M $4.5M
0369
1215182124
1 3 5 7 9 11 13 15 17 19 21 23
Months
Num
ber
of Bld
s O
n-N
et
Semi-Urban Mid-Size City Suburban Office ParkLarge Urban Downtown
Buildings On-Net by MonthBuildings On-Net by Month
9 Link Cross9 Link CrossOver PointOver Point
DSL, Cable Modem, MMDS2 Mbs
10 Mbs
20 Mbs
45 Mbs
155 Mbs
Point-Multipoint BWA
Point-Point BWA
Fiber
BWA: Filling the Gap Between Copper & FiberBWA: Filling the Gap Between Copper & Fiber
BandwidthBandwidth DensityDensity
HighHigh
MediuMediumm
LowLow