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ADVANCED COMMUNICATION SOLUTIONS
Satellite Satellite ConnectivityConnectivity
Connecting the Caribbean Connecting the Caribbean
Emergency Communications & Emergency Communications & Disaster PreparednessDisaster Preparedness
Michael GoldMichael Gold
Vice PresidentVice President
Comtech EF DataComtech EF Data
ADVANCED COMMUNICATION SOLUTIONS
Connecting the Connecting the CaribbeanCaribbean
Global Mobile Trends
• Mobile is enabling connectivity for many people for the first time in their lives
• GSM– 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
3
Sources:
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
4
Source:
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%)
5
Source:
Connect the Caribbean
• 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
6
ADVANCED COMMUNICATION SOLUTIONS
Emergency Emergency Communications & Communications &
Disaster Disaster PreparednessPreparedness
Natural & Man-Made DisastersAn Unfortunate Reality
• Recent examples around the globe have proven that communications systems can be severely affected when disaster strikes
– 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
• 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
• 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
• Interoperability & Standards– IP based platforms provide a seamless way to integrate Internet, e-mail, voice,
video, file transfer applications between agencies
• Ruggedness– Communications via satellite can be provided in extremely harsh environments
• Reliability– Satellite technology provides a highly reliable mechanism for one-way or two-
way communications
• 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
• Satellites meet the key requirements of an effective recovery plan
– 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
– Advanced forward error correction– Higher order modulation– Bandwidth compression
12
ADVANCED COMMUNICATION SOLUTIONS
• Forward Error CorrectionForward Error Correction
• Higher Order ModulationHigher Order Modulation
• Bandwidth CompressionBandwidth Compression
Advanced Satellite Advanced Satellite TechnologiesTechnologies
Forward Error Correction & ModulationSpectral Efficiency vs. Eb/No
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Turbo Product Coding
• Turbo Product Coding– Lower Eb/No requires less power – Higher efficiency uses less bandwidth– Block size most important for coding gain
4.0
1.50
3/4
5.2
1.35
Viterbi+ Reed
Solomon
TurboProduct Coding
Eb/No (dB)
Bandwidth Efficiency (bps/ Hz)4.2
1.75
7/8
6.5
1.58
Viterbi+ Reed
Solomon
Turbo Product Coding
Turbo Less BW
Turbo: Less Power
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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 AdvancedForward Error Correction
• Advances in FEC can offer ≥3-5 dB of performance over currently used methods
• 3 dB of Coding Gain can:– 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
• DoubleTalk® Carrier-in-Carrier® bandwidth compression allows sharing of same satellite bandwidth by both terminals
Mod_1 Demod_1 Demod_2 Mod_2
S1 S2
S1*'+ S2
*'
S1* S2
*S1 S2
S2 S1
S1*'+ S2
*'
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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
• 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:– Optimize satellite communications
– Minimize operating expenses
– Maximize transponder utilization
– Lower the total cost of ownership
2114 West 7th Street, Tempe, AZ 85281 USA Tel +1.480.333.2200 • [email protected] • www.comtechefdata.com20