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Telecommunication Needs for the Internet Infrastructure in Bangladesh Presentation at the Workshop on Nationwide Internet Access & Online Applications Dhaka, Bangladesh Professor Saifur Rahman, Director Manisa Pipattanasomporn, Graduate Student Alexandria Research Institute Virginia Tech

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Telecommunication Needs for the Internet Infrastructure in BangladeshPresentation at the Workshop on Nationwide Internet Access & Online ApplicationsDhaka, Bangladesh

Professor Saifur Rahman, Director

Manisa Pipattanasomporn, Graduate Student

Alexandria Research Institute

Virginia Tech

23 May 2004

it facts in bangladesh
IT Facts in Bangladesh
  • 50 telephone lines and 3 Internet users per 10,000 population
  • High installation charge of roughly $200 for a new telephone line
  • Long waiting time for a new connection of 2-4 years
themes for discussion
Themes for Discussion
  • Review existing IT infrastructures in Bangladesh
  • Review various access technologies
  • Identify least-cost ICT solutions for Internet access in Bangladesh
broad benefits from ict
Broad Benefits from ICT
  • ICT for Education
  • ICT for Health
  • ICT for Economic Opportunity
  • ICT for Empowerment and Participation
ict for education

Source: BBC News

Source: BBC News

ICT for Education

Wireless web reaches village children

“Using computers to assist in teaching mathematics”

“ Primary school children are introduced to computers using multimedia CDs.”

Schools in remote villages can serve as a venue for adult education, health care and small business activities

ict for health
ICT for Health
  • Online medical centers to provide better care for the sick
  • CD-ROMs to show how to better treat patients
  • Transmission of tests to the hub in the capital city for analysis

New horizons for Bangladeshi doctors

“The telecentre in Sonagazi”

Source: BBC News

ict for economic opportunity
ICT for Economic Opportunity

ICT can contribute to better marketing opportunities through access to information on:

  • Weather
  • Farming best practice
  • Crop status
  • Global market price
ict for empowerment and participation
ICT for Empowerment and Participation

State of Madhya Pradesh, India

  • Faster and more transparent access to government services.
  • Farmers can get copies of land titles for 10 cents (previously $100 from corrupt officials).

ICT contributes to fostering empowerment, and making government processes more efficient.

existing it infrastructure in bangladesh
Existing IT Infrastructure in Bangladesh
  • Satellite
  • Microwave Links
  • Optical Fiber Links
  • Cellular Coverage
satellite microwave links
Satellite &Microwave Links
  • Satellite is the only way to communicate internationally
  • Microwave links are the major communication backbone of the country
  • Microwave speed range from 34-155 Mbps

Source: BTTB Annual Report 2001

fiber links cellular coverage
Fiber Links &Cellular Coverage

Grameen Coverage as of March 2004

Railway lines

  • Backbone is transferred from microwave links to optical fiber links
  • Roughly 1,800-km fiber is installed along 2,900-km railway track
  • Leased by Grameen telephone to spread telecom footprint across the country

Source: www.gsmworld.com

internet access alternatives

Last-Mile Technologies

  • Wireline: POTS, DSL, Cable Modem
  • Wireless:
  • Fixed Wireless (WLL, LMDS, MMDS, VSAT)
  • Wireless Local Area Network (WLAN)
  • Wireless Metropolitan Area Network (WMAN)
  • Wireless Wide Area Network (WWAN)
Internet Access Alternatives

< 35km

> 35km

pots dsl

Telephone

PSTN

Modem

Router

Modem

Internet

Computer

ISP

POTS/DSL

POTS = Plain Old Telephone Service (56 Kbps)

DSL = Digital Subscriber Line (768 Kbps)

  • POTS:simplest way to connect to Internet, just modem and PC
  • DSL: a high-speed connection via a telephone lines
cable modem
Cable Modem

Delivering high-speed Internet services over cable TV systems (0.5-1Mbps)

  • A splitter splits the signal to TV outlets and the cable modem
  • Cable modem connects directly to the PC
cordect wll

WLL provides:

Simultaneous telephone and Internet connection (35-70kbps)

Source: www.srtelecom.com

CorDECT WLL
  • CorDECT WLL = Wireless Local Loop based on DECT standard
  • CorDECT WLL has been used extensively in India for rural telecommunication

Repeater

End user

End user

Base Station

mmds lmds
MMDS/LMDS
  • MMDS:support max 3.2Mbps per base station, maximum coverage of 20-km NLOS
  • LMDS: support max 155Mbps, maximum coverage of 3 km with LOS connection
slide17

Wireless Local Area Network (WLAN 802.11)

  • Operates in unlicensed bands
  • Provides speed of up to 54Mbps with 802.11a and up to 11Mbps with 802.11b
  • Coverage 100-300 meters

Wireless Card

Access Point

wman 802 16
WMAN 802.16

Up to 50 km

  • 802.16 provides path between subscriber sites and a core network
  • It can provide 60 customers with T-1 speed, range of 50km
  • 802.11 can add mobility to users in the building
  • Recently introduced, late 2003
mobile broadband wman 802 20
Mobile Broadband (WMAN 802.20)
  • 802.20 seeks to boost real-time data transmission rate to 1 Mbps or more.
  • Cell ranges of up to 15 kms or more.
  • Deliver speed to mobile users traveling at speeds up to 250 km/h.
  • Availability: 2005 or later
slide20
WWAN

WWAN uses cellular networks to enable Internet connection from cellular phones.

  • Require infrastructure changes, e.g. new base station add-on and software upgrade and new handsets
slide21
VSAT

VSAT = Very Small Aperture Terminal

  • 2.4 m or smaller disk
  • Provide connection in areas with no infrastructure
evaluating last mile options
Evaluating Last-Mile Options
  • Cost of ownership

POTS

DSL

Cable Modem

WLL

MMDS

LMDS

802.11

802.16

802.20

VSAT

POTS

DSL

Cable Modem

WLL

MMDS

LMDS

802.11

802.16

802.20

VSAT

  • Coverage distance
  • Data rate
evaluating last mile options23
Evaluating Last-Mile Options

WLL

* Bangladesh FOB price based on a quote from an Indian company (2003)

** Data from “Licensing New Public Switched Telephone Network (PSTN) Operators in Private Sector in Bangladesh”, BTRC (2003)

  • Coverage distance 10-35km
  • Data rate 35/70 kbps
evaluating last mile options24
Evaluating Last-Mile Options

MMDS

* Price based on a quote from a US company (2003)

** Data from “Licensing New Public Switched Telephone Network (PSTN) Operators in Private Sector in Bangladesh”, BTRC (2003)

  • Coverage distance 25km
  • Data rate Max 3.2Mbps
evaluating last mile options25
Evaluating Last-Mile Options

802.16

* Price based on a quote from www.jts.net/724-36MicrowaveRadio.htm (2004)

** Data from “Licensing New Public Switched Telephone Network (PSTN) Operators in Private Sector in Bangladesh”, BTRC (2003)

  • Coverage distance 35km
  • Data rate 24Mbps effective
evaluating last mile options26
Evaluating Last-Mile Options

VSAT

* Price based on Sustainable Development Networking Program (SDNBD)

www.sdnbd.org/sdi/issues/IT-computer/IT_Revolution_A_Millennium_Opportunity.htm

** Data from “Licensing New Public Switched Telephone Network (PSTN) Operators in Private Sector in Bangladesh”, BTRC (2003)

  • Coverage distance few km with copper wire
  • Data rate 64kbps – 2Mbps
other costs
Other Costs
  • Access charge to use PSTN from BTTB: BTTB charges a one-time registration fee of Tk10,000; installation and testing fee of Tk30,000 at 2Mbps; and a rental fee of Tk76,000 per annum.
  • Personal Wireless Services: these may include wireless design services, site survey services, wireless engineering services, installation and maintenance support.
  • Other costs: these may include cost of towers, recurring costs, end-user equipment, housing infrastructure and power supply.
ict solution for bangladesh

Area: 144,000 km2- Flat terrain

Population:133 million people (925 persons/km2)

Infrastructure:optical fiber, cellular tower, microwave station

ICT Solution for Bangladesh

Take a closer look at a target country: Bangladesh

With existing infrastructures, WLL or 802.16 are least-cost options. In any case, backbone must be able to support data needed at base stations

possibility for nationwide telecom and internet access in bangladesh
Possibility for Nationwide Telecom-and-Internet Access in Bangladesh
  • In Bangladesh, about 90% of the population could be served by as few as 25 towers with multiple base stations using WLL or 802.16 technologies.

35 km coverage

conclusions
Conclusions
  • Least-Cost ICT Solution for Bangladesh

Recommend WLL or 802.16 for Bangladesh. Per unit cost will depend on number of clients that can be served from one location

To this end, the proposed solutions will vary depending on the available ICT infrastructure, applications, speed requirements, and ability to pay for the services.