Presentation WiMAX
Presentation WiMAX
Presentation WiMAX
WiMAX Overview
License to Thrill
AGENDA
What
is WiMAX?
WiMAX Forum
Working
Applications
RF Spectrum
PHY & MAC Layers
WiMAX vs. Other Broadband Technologies
Proposed Solutions & Scenarios
Market Analysis & Trends
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What is WiMAX?
-WiMAX is World Wide Interoperability for Microwave Access
Two driving forces of modern Internet are Broadband and Wireless
-WiMAX combines the two of them
WiMAX is IEEE WWAN Technology (802.16)
-Aims to provide high throughput wireless broadband
connections over long distances and backhauling
-NLOS & LOS Configurations
-Replacement or substitute for DSL and Cable Modems
Two main 802.16 sub standards
- 802.16-2004 Fixed Wireless broadband access
- 802.16e
Mobile Wireless broadband access
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WiMAX Forum
A non profitable organization comprised of
1. Broadband Wireless Equipment Manufactures
2. Telecom System Integrators
3. Component Suppliers (Silicon, RF, Antenna, Software)
4. Service Providers (DSL Operators, WISPs)
Their Charter
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Worldwide WiMAX vision
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WORKING
Line of Sight (LOS)
Antenna & WiMAX tower in line
Stronger & more reliable
Supports very high data rates
Frequencies reaching upto 66GHz
Less interference & lot of band
width
LOS for Backhauling always
Non Line of Sight (NLOS)
Antennas not in line
Small size antennas
Indoor & outdoor installed CPEs
Low frequency range, 2 11 GHz
Less disruption at lower freq.
Low data rates as compared to
NLOS
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WiMAX Family of Standards
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WiMAX Applications
Backhauling between towers
Backhauling for WiFi networks
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Contd
Portability in 2006
- Free movement
- Small sized CPEs
- Registering on different BSs
- No seamless handoff
Full Mobility
- Expected in 2007 2008
- Always best connected
- Services everywhere
- seamless handoff
- vehicular speed of 150 Kph
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Utilization of RF Spectrum
Licensed Spectrum
- Owned by the carriers
- Expensive but guaranteed high quality of service
- High barriers to enter
- Time consuming
- Less interference
Unlicensed Spectrum
- Free of cost
- Attractive and easily deployable
- WiFi & Bluetooth in this spectrum
- Advantage in rural areas and emerging markets
- As a backup for the licensed and wired networks
WCS, 3.5 GHz and MMDS are licensed bands
ISM, 5 GHz U NII & WRC Bands are unlicensed
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Licensed and License Exempt Solutions
Licensed Solutions are suitable for:
-
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PHY & MAC Layers
. PHY Layer
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. MAC Layer
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WiMAX vs. Other Broadband Technologies
. WiMAX vs. UMTS
- WiMAX, a direct threat to 3G
- Reduced multi path interference due to smart antennas &
Adaptive Antenna System (AAS) employed in WiMAX
- Near Far problem eliminates because of OFDM waveform &
applying an IFT on the signal before transmission
- Lesser spectrum available for UMTS as the no. of users grow
- WiMAX have superior broadband capabilities ( OFDM & large
spectrum availability), distance capabilities (adaptive
modulation) & full QOS (Access Grant Mechanism) to support
voice efficiently
- WiMAX BW: 70 Mbps, Max Bit Rate: 100 Mbps
- 3G BW: 2 Mbps, Max Bit Rate: 2 Mbps
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. WiMAX vs. WiFi
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. WiMAX vs. HSDPA ( High Speed Downlink Packet Access )
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. WiMAX vs. DSL
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Proposed Solutions and Scenarios
Three major Capital Expense Items (CAPEX) in the end to end network
Customer Premise Equipment (CPE)
Base Station (BS) Infrastructure
Edge, Core & Central Office Equipment
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Urban Business Case Deployment Scenarios
Market Segment : Residential + Market
Household density : 10,000 HH per Sq Km
Business Density : 1000 businesses per Sq Km
Coverage Area : 136 Sq Km
Expected Market Penetration : 3.5 % (Approx)
Base Stations : 48 WiMAX BSs with an average 1.8 Km spacing
Network Build Out : 4 years (12 BSs per year)
Edge, Core & Central Office : $1,000 K
Business CPEs: $500 in 2005 with 10 % expected erosion per year
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Suburban Business Case Deployment Scenarios
Market Segment : Residential + Business
HH Density : 2,000 HH per Sq Km
Business Density : 100 businesses per Sq Km
Expected Market Penetration : 4 % (Approx)
Coverage Area : 212 Sq Km
BSs: 24 BSs at an average spacing of 3.2 Km
Network Build out : 2 years (12 BSs per year)
Edge, Core & Central Office : $300K to extend MAN and add capacity
3 Channel BS at $71K, WiMAX equipment at $21K, Backhaul at $15K
Civil Works : $35K
Business CPEs : $500 in 2005 with 10 % expected erosion per year
Outdoor Residential CPEs : $350 in 2005 with 20 % expected erosion per year
Scenario 1
100 % CPEs provided by the operators
1 or 2 years service contract
Reduced cost for the customers
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Scenario 2
50 % CPEs purchased by the end customers
Reduction of 20 % in the monthly service fee
Expected Rates:
- Internet Service : $12 / month
- VoIP Service : $4 / month
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BS CAPEX Cost per Subscriber : $142
10 % CPEs can be indoor type
Results in reduction of about 8 % in channel capacity
Capable of supporting 500 residential customers
Scenario 1
Operator offers no rebate
300 customers in 2 years
Scenario 2
Operator offers $50 CPE rebate over first 2 years
350 customers in 2 years
Scenario 3
Operator offers $100 CPE rebate over first two years
400 customers in 2 years
- Acceleration in initial adoption rate
- Reduced payback period for the operator
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Market Analysis & Trends
Demand in the broadband wireless access continues to drive BWA Market
50 % equipments support
802.16 by 2008
5 % served by optical fibres
WiMAX for 10 % of the cost
instead of T1
Reduced cost of hotspots
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Fixed Market Trends
785,000 CPEs and 40,000 BS sectors were shipped in 2004
Alvarion, the market leader with 26 % shares
$37 million public sector representation for BWA/WiMAX in 2004
1 million wireless subscribers
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Market Forecasts
15 million BWA subscribers by 2010
9 million Fixed WiMAX subscribers by 2010
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Thank you