ITU workshop on“Apportionment of revenues and internationalInternet connectivity”(Geneva, Switzerland, 23-24 January 2012)Internet connectivity in SenegalAminata DRAME,Wholesale Marketing Manager, Sonatel, GroupeFrance [email protected], Switzerland, 23-24 January 2012
Contents1.Introduction2.National connectivity3.Rural connectivity4.International connectivity5.Internet6.Conclusions7.Outlook
1. IntroductionSince 1976, submarine cable systems have been used toconnect Senegal to the global network and give itinternational connectivity.Overland fibre-optic systems were first deployed in 1993.This was reinforced by a national backbone renewed thanksto a policy of sustained investment that enabled themigration to land cables.Landlocked countries in the subregion naturally found anopportunity to connect and open themselves to the worldvia the Dakar platform.
2. National connectivityFibre-optic terrestrial systems were firstdeployed in 1993.over 3500 km of fibre-optic cables laid25 fibre-optic transmission loops covering the entirenational territory, in particular the 14 main towns ofSenegal.The systems continue to be deployed, with10 GB systems to be installed on all links by2015.
NationalRoss bethiobackboneRichard tollPodorCENTRE LOOP3 STM16(WDM)DioumDaganaCENTRE-NORTHLOOP 1 STM16Haere LaoSt-louisNORTH LOOP ukhoudosToubaMosqueeThies daBalaKeur AyibBanjulSOUTH LOOP2 STM16Ainou MadyDigantevelingaraBignonaKédougouTanaffZig MUXZig FHKoldaTamba Kedougou RADIORELAY NETWORK4 STM1
3. Rural connectivityOne of the objectives of the Senegalese Government’s sector policyis to connect the country’s 14,275 villages to the telephone networkbefore 2010.Sonatel, Senegal’s incumbent operator, undertook to connect the14,275 villages by using wireless technologies such as CDMA, GSMand VSAT.The deployment of point-to-multipoint systems until 2004, fixed-lineto GSM (2005 - 2006), followed by CDMA, served to expand therange more rapidly while significantly reducing access costs.CDMA 450 MHz low frequency hence very large range appropriatefor low-traffic areasToday 95% of villages with more than 500 inhabitants are covered.
3. Rural connectivitySelf-financed rural investments between 1997 andlate October 2008 totalled 44 billion CFAF, or88 million USD, by the end of October 2008(Connect Africa commitment).Those investments gave people access to basicservices: fixed and mobile telephony, the Internet.
4. International connectivity: from analoguesubmarine systems Sonatel and its predecessors started to promote and developsubmarine cable networks in 1976.A stake was acquired in several analogue cables around theworld, 3 of which make landfall in Dakar:Antinéa, brought into use in 1977, connecting Senegal toMorocco, capacity 5 MHz (640 circuits);Fraternité, brought into use in 1978, connecting Senegal to Côted’Ivoire, capacity 5 MHz (480 circuits);Antlantis1, brought into use in 1982, connecting Senegal toBrazil with a capacity of 14 MHz (1,380 circuits) and Senegal toPortugal with a capacity of 25 MHz (2,580 circuits).
to fibre-optic submarine systemsAtlantis 2 (ATL2): brought into service in February 2000, connecting Portugal,Spain, Cape Verde, Brazil and Argentina, capacity 20 Gbit/sSAT-3/WASC/SAFE (S3WS): brought into service in April 2002, connectingEurope, Africa and Asia, capacity 380 Gbit/sAfrica Coast to Europe (ACE): 17,000 km long, connecting 19 countries (16 ofthem African) – being implemented, to be operational in second half 2012,capacity 5.2 Tbits/s
4. International connectivity:subregional terrestrial restrialextensions to promote access by landlocked countries to theglobal submarine network. This partnership enabled Gambia,Mali, Mauritania and Guinea Bissau to increase their respectivebandwidths.The 2.5 Gbits/s optical fibre ground wire (OFGW) linking Senegal toMauritania and Mali extended to Burkina Faso and Côte d’IvoireThe 2.5 Gbit/s Kidira - Bamako optical fibre also extended to Burkina Fasoand Côte d’IvoireA 622 Mbit/s terrestrial fibre-optic link and a 155 Mbits/s digital radiorelay system linking Senegal to GambiaA 622 Mbits/s fibre-optic link with Guinea Bissau coupled with a34 Mbits/s digital radio-relay system extended to Guinea Conakry
4. International connectivitySonatel’s main national routesfor subregionalinterconnectivityNorth axes karSouthAxeSudaxis5 Gbits/s15Gbits/sSouth axis 2South axis 1
4. International connectivityCTOA continues to work to interconnect by means of at least two fibre-optic landlinks of at least 2.5 niaBurkinaextensionSenegalCôte d’IvoireextensionMauritaniaMaliCôte d’IvoireextensionGambiaGuinea BissauGuinea ConakryFibre-optic linkDigital radio-relay linkCôte d’Ivoire
5. Internet: high speed nationwideSteadily increasing 9,014 Gbits/sInternet bandwidthCDMA 1x: national coverageEVDO: coverage of all regionalcapitals and over 95% ofdepartmental capitalsADSL: 95% of distribution framescoveredServices available:Internet access via ADSL, ADSL2 ,VDSL2, with speeds of 512K to10 Mbit/sInternet rented links (64 Kbits/s to1 Gbits/s)MPLS VPNIP TV with about 100 channelsVoD with a catalogue of about300 filmsen Mbits/sIncrease inDébitInternetbandwidthbetween 1999 and 2002200320042005200620072008200920102011High-speed coverage13
5.Internet: a subregional hubSTM4STM1Lien LANFrance TelecomTeleglobeDECEMBRE ISSAU1SWITCH 2SWITCH bpsMedina16MEDINA 16Medina23ORANGE MALI 2GUINEETELECOMpsBISSAU2CONAKRYORANGE MALI 1Internet transit provided to 9 subregional operators
6. ConclusionsSenegal has secure international connectivity thanks to the Atlantis 2 and SAT3/WASC/SAFE submarine cable systems, which will be reinforced by ACE inthe second half of ndwidthof9,014 Gbits/s. This will grow in response to the needs of businesses, Internetaccess providers, value-added service operators, cybercentres, call centres,etc.The countries bordering on Senegal (Mali, Mauritania, Guinea, Guinea Bissau,Gambia, Burkina Faso) are connected to the global submarine cable networkand the international Internet backbone through the Sonatel hub via a secure,nationwide fibre-optic transmission network.Sustained investment in submarine cables and in transmission and high-speedaccess networks fosters the development of Internet-related broadbandservices (ADSL, TV on ADSL, IP/MLS, video telephony on ADSL).
7. OutlookSenegal, like the other countries of Africa, continues to pay (a great deal!)for its Internet bandwidth because of lack of content of interest to others.In addition to network investment, operators could consider initiatives tolower the high cost of Internet access for their customers:Development of local contentIntroduction of cache and CDN (Content Delivery Network) solutionsto host the most popular content on our networks and thus optimizethe use of Internet bandwidthInstallation of Root.com/.net servers, for example to meet DNSrequests without using Internet linksEstablishment of subregional data centres for content-related services(TV, VoD, etc.), content hosting, cloud computingLast but not least, secure Internet access