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Brian AYRES

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Excellent but subject to the response time of the PTT in time of outage. Satellite. Excellent but subject to outages of a few minutes for a few days during eclipses ... – PowerPoint PPT presentation

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Title: Brian AYRES


1
Development of Telecom Networks in Africa
  • Brian AYRES
  • CEO, GlobalNet Inc.
  • bayres_at_globalnet.cm

2
Media
  • Continuing our discussion of yesterday, there are
    2 main media used by telecom networks in Africa
    that interest us
  • Fiber optic cable
  • Satellite

3
Geographical Availability
  • Fiber optic (terrestrial) in certain
    cities/countries.
  • Fiber optic (undersea) at coastal locations in
    West Africa.
  • Satellite everywhere.
  • The two media are generally complementary.

4
Bandwidth availabilty
  • New Skies
  • Virtually none
  • Intelsat
  • None to Africa on certain satellites
  • SAT-3
  • Currently used 20 Gbps
  • Upgrading to 40 Gbps.
  • 120 Gbps is the limit

5
Reliability
  • Fiber
  • Excellent but subject to the response time of the
    PTT in time of outage.
  • Satellite
  • Excellent but subject to outages of a few minutes
    for a few days during eclipses twice per year.
  • This mornings comments on VSAT availability.

6
Developments (1)
  • Fiber Optic Cable, undersea
  • EASSy (NEPAD)
  • IWTGC
  • Fiber Optic Cable, terrestrial
  • Rail, pipeline
  • CBG

7
(No Transcript)
8
EASSy project
9
IWTGC
  • The submarine cable system will run from Portugal
    to Cameroon along the coast of West Africa and
    will link Nigeria, Benin, Liberia, Senegal, Cote
    d'lvoire and Ghana.

10
Developments (2)
  • Satellite
  • New
  • RASCOM (2006)
  • NSS-8 (2006)

11
RASCOM C Ku band
12
RASCOM Ku band
13
RASCOM C band
14
NSS-8 Transponders
  • 36 x Ku-Band
  • 56 x C-Band

15
NSS-8 C band West Hemi
16
NSS-8 Ku band spot beam
17
NSS-8 European spot
18
  • "TRUTH and technology will triumph over BS and
    bureaucracy."
  • Rene Anselmo, founder of PanAmSat

19
Dog Spot
20
Mergers
  • Intelsat and PanAmSat
  • Fleet of 53 satellites
  • 28 from Intelsat, 25 from PanAmSat
  • Good news economy of scale
  • Better prices

21
Fiber Optic vs Satellite
  • Is there a choice?
  • Not necessarily.
  • Maybe only satellite available go satellite.
  • Maybe fiber less expensive go fiber.
  • They are complementary.

22
Fiber Optic vs Satellite (2)
  • Is a homogeneous network necessary?
  • It is not even possible at the moment, unless it
    is satellite.
  • Why should it be necessary?
  • Why not use the best of fiber and satellite?

23
Fiber Optic vs Satellite (3)
  • Pricing
  • Is satellite more expensive than fiber?
  • SAT-3 Fiber 3.7 / kbps in Cameroon.
  • Fiber pricing in other countries?
  • Satellite pricing 2 to 6, depending on
    satellite, beam, etc.

24
Thank you for your attention!
  • Brian Ayres
  • currently based at GlobalNet Guinée
  • bayres_at_globalnet.cm
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