Transcript CANTO 08 Comtech EF Data Presentation

ADVANCED COMMUNICATION SOLUTIONS
Satellite
Connectivity
Connecting the Caribbean
Emergency Communications &
Disaster Preparedness
Michael Gold
Vice President
Comtech EF Data
ADVANCED COMMUNICATION SOLUTIONS
Connecting the
Caribbean
Global Mobile Trends
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Mobile is enabling connectivity for many people for the first
time in their lives
GSM
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3+ Billion GSM subscribers exist worldwide
700 mobile operators across 218 countries and territories of
the world are adding new connections at the rate of 15 per
second, or 1.3 million per day
Emerging markets represent 85% of new connections today
Over 90% of the Earth's population will be covered by mobile
networks
To keep capital and operating costs down, new and
innovative ways must be proposed to meet connectivity
goals
The fast pace of cellular network roll-out and take-up
around the world is creating mounting coverage challenges
for mobile operators
Sources:
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Satellite-Based Cellular Backhauling
• To enter markets beyond large city limits and to
blanket large regions with cellular services quickly,
satellite backhaul can efficiently extend reach
• To tap into new customer markets with tight and
regulated timeframes, mobile incumbents and new
operators can build networks with satellite
infrastructure
• Satellite can beat many fiber, cable or wireline
deployment schedules by weeks or months
• Technology advances (compression techniques,
IP-over-satellite delivery and optimized network
topologies) are catalysts to fuel the market for
cellular backhaul via satellite
Source:
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Satellite-Based Cellular Backhauling
• Market is driven by rapid expansion of cellular
networks in developing economies of Africa, Middle
East, Latin America and Asia
• Mobile operators are using satellite space segment
to backhaul traffic between remote cell sites and
the network’s Mobile Switching Center
• Satellite is most popular in greenfield operations –
it’s the quickest and most cost effective solution for
RAN deployment
• Total number of cellular sites backhauled by
satellite is predicted to grow to 35,000+ sites
globally by end of 2010 (CAGR = 28%)
Source:
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Connect the Caribbean
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Demand for satellite capacity is straining the
bandwidth supply
In Latin America, operators will launch new
satellites during the next 2-5 years to meet the
new demand over the next 10-15 years
However, the growth of government and
commercial applications over satellite requires
immediate solutions for satellite transponder
capacity
The capacity challenge can be countered with
advanced satellite technologies
– Advanced forward error correction
– Higher order modulation
– Bandwidth compression
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ADVANCED COMMUNICATION SOLUTIONS
Emergency
Communications &
Disaster
Preparedness
Natural & Man-Made Disasters
An Unfortunate Reality
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Recent examples around the globe have proven that communications systems
can be severely affected when disaster strikes
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The financial impact of network outages can be considerable
Even the most reliable terrestrial networks are susceptible to outages because they lack true path
diversity and have common points of failure
Establishing first response connectivity of voice, data and video is a necessity
And, maintaining continuity of business communications is critical for sustained
operations
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Satellite Communication Systems
An Essential Component to Disaster Recovery
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Enables communications restoral more rapidly than terrestrial systems
Allows enterprises and government agencies to respond quickly if
satellite communications systems (fixed or mobile) are the backbone of
emergency communications networks
Facilitates instantaneous communications between hospitals,
headquarters, supply centers and remote locations
Minimizes downtime of back office operations
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Disaster Recovery &
First Responder Needs
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Rapid Deployment
– Satellite based systems are perfect for instantaneous deployment to the
disaster site
– Systems can be organized in vehicles or in transportable, self-contained
cases
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Interoperability & Standards
– IP based platforms provide a seamless way to integrate Internet, e-mail,
voice, video, file transfer applications between agencies
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Ruggedness
– Communications via satellite can be provided in extremely harsh
environments
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Reliability
– Satellite technology provides a highly reliable mechanism for one-way or
two-way communications
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Security
– Satellite links must provide secure communications
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Business Continuity Needs
• Redundant communication links
between corporate offices locally,
regionally, nationally and globally
• Critical connections to off-site
back-up servers, computers, and
databases
• Businesses to “get back on their
feet” quickly after a loss of
terrestrial/wired communication
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Satellite Services Meet the Need
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Satellites meet the key requirements of an effective
recovery plan
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Physical path diversity from the exiting network
Fast service availability – within 24 hours
Scalable bandwidth that can adjust to changing capacity needs
Flexible service support
Bandwidth/capacity available for extended time frames
Connectivity to primary and backup data centers
Last-mile bypass of disaster-affected area
Ability to relocate easily
Rapid deployment
The network can be leveraged to support applications
other than backup
Deployment of advanced satellite technologies make it
more cost-effective
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Advanced forward error correction
Higher order modulation
Bandwidth compression
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ADVANCED COMMUNICATION SOLUTIONS
Advanced Satellite
Technologies
• Forward Error Correction
• Higher Order Modulation
• Bandwidth Compression
Forward Error Correction & Modulation
Spectral Efficiency vs. Eb/No
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Turbo Product Coding
3/4
Viterbi
+ Reed
Solomon
Eb/No (dB)
Bandwidth Efficiency (bps/ Hz)
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7/8
Turbo
Product
Coding
5.2
1.35
4.0
1.50
Viterbi
+ Reed
Solomon
6.5
1.58
Turbo
Product
Coding
4.2
1.75
Turbo Product Coding
– Lower Eb/No requires less power
– Higher efficiency uses less bandwidth
– Block size most important for coding gain
Turbo: Less Power
Turbo
Less
BW
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Low Density Parity Check
• Basis of DVB-S2 standard
• Third-class of Turbo Code
– Turbo Product Coding (TPC)
– Turbo Convolutional Coding (TCC)
• Iteratively decoded block code
• Performs 0.7 dB – 1.2 dB better than TPC at
low FEC rates (3/4 and below)
• While coding gain is greater, processing
delay can be an issue
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Benefits of Advanced
Forward Error Correction
• Advances in FEC can offer ≥3-5 dB of
performance over currently used methods
• 3 dB of Coding Gain can:
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Reduce required bandwidth by 50% or
Increase data throughput by a factor of 2 or
Reduce antenna size by 30% or
Reduce transmitter power by a factor of 2
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Bandwidth Compression
S1
S2
S1*'+
S2*'
S1*'+ S2*'
Mod_1
S1
Demod_1
Demod_2
S1*
Mod_2
S2*
S2
S2
S1
• DoubleTalk® Carrier-in-Carrier® bandwidth
compression allows sharing of same satellite
bandwidth by both terminals
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Satellite Connectivity
• Connecting the Caribbean
– Satellite-based cellular backhaul efficiently extends reach
• Emergency Communications & Disaster
Preparedness
– Satellite-based systems enable rapid communications
restoral
• Deployment of advanced technologies make satellite
more cost-effective
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Comtech EF Data
Satellite
Modems
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Access Devices
(Subsidiary,
Memotec)
Modem
Accessories
Terminals
Performance
Enhancement
Proxies (PEPs)
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Vipersat
Network
Products
Transceivers
Digicast
Products
Converters
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Specializes in solutions that optimize
satellite communications
Is recognized as a technology leader
and innovator
Has infrastructure products installed
in more than 160 countries
Provides “around the clock”
customer support & authorized
service centers
Is prepared to help you:
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Optimize satellite communications
Minimize operating expenses
Maximize transponder utilization
Lower the total cost of ownership
Amplifiers &
BUCs
2114 West 7th Street, Tempe, AZ 85281 USA
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Tel +1.480.333.2200 • [email protected] • www.comtechefdata.com