Optimization of Hybrid PV Wind Power System for Remote Telecom Station
How telecom spread to remote areas in India
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Transcript of How telecom spread to remote areas in India
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Bishnu D. Pradhan PhD, FNAEMumbai
Communications in ICT For Development – A PerspectiveCommunications in ICT For
Development – A Perspective
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PRESENT STATUS IN INDIA
• FIXED LINES – 40 MILLION
• MOBILE CONNECTIONS – 40 MILLION
• TELEDENSITY APPROXIMATELY 8
• INTERNET CONNECTIONS – 5 MILLION
• INTERNET USERS NEARLY – 25 MILLION
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TELEPHONES IN REMOTE VILLAGES IN NEPAL
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LINKING POKHARA WITH THE OUTSIDE WORLD
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Remote Rice Fields
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Manual Exchanges
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RURAL ENVIRONMENT
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C-DOT 256P RAX SWITCH
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Rural Exchange in Orissa
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RAX in Rajasthan Village
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A RAX by the bedside
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Rural Microwave – 6RU10
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INSTALLING IN NEPAL NETWORK
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RAX base WLL
• Wireless connectivity to RAX
• Use Motorola AMP Cellular Base station
• Enhanced capacity to : 400 Wireless and 200 wired subscribers
• First Wireless Local Loop solution
• Not approved by DOT for connectivity to the network
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UNIT BEING WASHED ON A SUNNY DAY !
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Satellite Phones
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RSU
RSU
RSU
BSU
RSU
TDMA-PMP RADIO
30 Channel PCM4W E&M2WTP
STN
RAX
Wireless Technologies deployed
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FIELD DEPLOYMENT
C-DOT91%
OTHERS9%
C-DOT
OTHERS
OTHERS55%
C-DOT45%
C-DOT
OTHERS
RURAL OVERALL
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Satellite modemsSatellite modems
Rural wirelineRural wireline
Rural wirelessRural wireless
Objective : provide Urban like features in Rural sectors with minimized cost and appropriate technology.
With 50,000 more remote villages to be covered, wireless technologies may play a vital role.
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CORDECT Rural Model
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Vigyan Ashram in Pabal
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PABAL INTERNET SERVICE
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Technology Customization Example: Internet Access in Rural India
5 - 8 Km
MetroInternet
Village
802.11b range extensionusing directional, home grown,custom made antennas
802.11b range extensionusing directional, home grown,custom made antennas
Internet accesswithin 0.5 Km radius of the village center
Internet accesswithin 0.5 Km radius of the village center
Further range extensionusing multi-hopping
Further range extensionusing multi-hopping
Alternate path routingfor high reliability
Alternate path routingfor high reliability
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802.11b Rural Connectivity
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Internet Telephony
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Video Conferencing from the Village
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IITK’s 802.11b DGP Test Bed
River GangesIITK
Mandhana
SafipurSarauhan
Lucknow
5.5 Km
23 K
m
End to enddistance85 Km
Rajajipuram BSNL Tower
16 Km
38.2 Km
Kanpur-Lucknow Highway Lucknow Airport
Ajgain
18 Km
MS3
2.5 Km
Lodhar
Bithoor
37 k
m
23 Km IISTEMBanthar
Info kiosk
Info kiosk
Sawayajpur
VOIP
VOIP
Mobile Health Care
22 K
m
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802.16 Wireless Standard
• Approved by IEEE Standards body in 2003
• Broadband Point to Multipoint System
• Frequency range 10 GHz to 66 GHz
• Line of Sight
• Average bandwith 70 Mb/s to 268 Mb/s
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WiMax Standard
• Approved as 802.16 a standard
• Operates in frequency range 2GHz to 11 GHz.
• Non Line of Sight
• Bandwidth of 75 Mb/s
• Range of 3 – 5 miles, maximum of 30 miles, depending on tower height, power gain.
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VSAT hub
Internet
Internet
VSAT station
Central Tower
Local server
Router
802.11access
points
Multihop access
VSAT BASED RURAL NETWORK
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Village school in Harayan
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Villager reaction
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Bishnu D. Pradhan PhD, FNAEMumbai
THANK YOUTHANK YOU