Fiber To The Home

FTTH is the Acronyme term English Fiber To The Home , literally meaning in French “ fiber to the hearth ”. It is about the name of a technology aiming at competing with technologies XDSL by installing Fiberoptic until at the Abonné. The costs of deployment of this technology are for the moment such as it is justified only in the dense zones, the remainder of the territory being dedicated to remain served in ADSL, at least in the absence of public finance.

This technology defines a type of Infrastructure of communication giving access to Internet and with the services associated with flows up to 1 Gbit/s in each direction, is flows much higher than those accessible via the even telephone copper . Comparable with the cable in its installation, since it requires the expensive fiber installation until at the subscriber, the FTTH is mainly used in the residential areas. Technology however is well adapted to the rural areas, because the fiberoptic offers the advantage of being able to transmit the signal without degradation on long distances, contrary to the pair of copper.

This technology is already used in urban environments in Asia of South-east and with the the United States, like in some European agglomerations. The network Pau Broadband Country has the appearance of a precursor; among the projects in progress, those of Amsterdam and Hauts-de-Seine seem most advanced.

In France the true kickoff of the FTTH was given by the advertisement by the company Iliad of a plan of deployment over 6 years (see below).

In Switzerland the FTTH was lancàe by Sierre Energie with its Project Vario with a project envisaged over 5 years (see below).

The infrastructure fiber assures of satisfaction in terms of uses, allowing various members of a hearth of simultaneously surfer, to telephone, view a film in high-definition, etc…

Transport of level 1

There exist several types of transport to go until subscriber (FTT " Home")

PON : Passivate Optical Network

EPON: Ethernet PON, the network is Ethernet from beginning to end
APON: ATM Pon : The grid system level 2 uses ATM
BPON: Broadband Pon: Protocol ATM
GPON: Able gigabit Pon: Multiprotocol: ATM, Ethernet and Active TDM

: Switches Ethernet

PPP: Not to not protocol

Flows of a transport FTTH

At present, the flow available for the subscriber varies 10Mb/s with 100Mb/s. Cependant, the fiberoptic authorizes the transport of a quite higher flow, which makes an evolutionary support of it. In Japan there exist already offers with 1Gb/s in FTTH since 2006. The first Parisian customers of fiber proposed by Orange (approximately 500 in March 2007), note very high flows of 100Mb/s while going down, and 20Mb/s while going up. One of the most interesting characteristics of fiber is its very weak time of propagation (between 2 and 3 ms), reducing latency related to the network compared to other technologies containing copper.

Uses

Which possible uses?

P2P
Telecommuting
TV-HD
Videoconference
Video with the request
Voice on IP

FAI which proposes the FTTH in France:

Orange
Iliad/Free (repurchase of CitéFibre on October 20th, 2006)
Last nines (repurchase Erenis and MédiaFibre during 2006-2007)
Alice
Numericable
France Citévision

FAI which proposes the FTTH in Switzerland:

Vario (Sierre Energy]

Places where the FTTH is deployed in France

Places where the FTTH is deployed in Switzerland

General information

France Telecom began as of the January 17th 2006 from the tests from deployment from FTTH on 5 districts from Paris like 5 cities from the Hauts-de-Seine then 5 cities in area. In the Paris region, network architecture retained by France Telecom east of the point-with-multipoint type , or GPON ( Gigabit Passivates Optical Network , optical network passive). December 15th, 2006, reacting to the advertisement of Free, France Telecom indicated to want to invest 270 million euros in the FTTH over 2 years.

In addition, FAI Free announced the September 11th 2006 that an offer of FTTH, to 50 Mb/s at least, would be developed as of first half of the year 2007. The company also announced that its network would be opened to the competitor operators, on which they will be able to rest to deploy their own offers. Nevertheless, this private network not being subject to the rules of the existing Deblocking for connections " cuivre" ADSL, it will be marketed in the conditions that Free will fix. The deployment will initially relate to the town suit of Paris, while starting with the 15th district, then the small crown and the remainder of France in the sectors where the company counts to at least 15% customers. For the zones whose service road requires work of civil engineering, Free announced to seek agreements of co-financing with the communities concerned. More details

Thanks to the successive repurchases of Mediafibre (in Pau) and Erenis (in Paris), Last nines lance since April 2007, the fiberoptic in 55.000 residences in Paris (but in FTTB) and 44.000 hearths in Pau (via the neutral public network built by the Community of Agglomerations of Pau).

With the difference in the experiments carried out by France Telecom in the Paris region, the architecture deployed by Free will be that of a network point-with-point i.e. of Ethernet Peer-to-peer, or direct Ethernet fiber (Ethernet by direct fiber). It is in particular this architecture which will allow it dégrouper to give access to third operators to it. For the differences between the various forms in connection fiber, to see Fttx

In the Hauts-de-Seine, the General advice announced in October 2005 a project of fiber service road of the whole of the department. That is to say more than 500.000 residences, which makes of it more public great project FTTH of Europe. Neutral network of service road, THD 92 is opened with all the competing operators: offer passive infrastructure, Bi-compatible PON/point-with-point, marketed according to an identical public tariff scale for all.

With Paris, the deployment of the network of each operator should be done by a quasi systematic passage in the sewers of Paris. This deployment was largely facilitated by the plan Numerical Paris Ville, launched on the initiative of the municipality, and which envisages in particular a reduction of 90% of the royalty of use of the sewers of the city.

Images in report/ratio FTTH

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