G.fast DSL standard to speed up broadband over short distances2014-12-08 10:56 by DanielaTags: G.fast, ITU, DSL
The International Telecommunications Union (ITU) has approved G.fast, the new broadband standard designed to deliver access speeds of up to 1Gbit/s over existing telephone lines. G.fast is much cheaper to install than fibre to the home (FTTH), and the ITU believes that customers will be able to install it themselves. However, it is not as fast as FTTP and the speed falls off very fast with distance. The union claims that the technology achieves speeds at up to 1Gbps at distances of up to 100 meters. For further distance, the speeds decreases to about 150Mbps over 250 meters. "G.fast will increase the feasibility of implementing bandwidth-intensive services such as Ultra-HD '4K' or '8K' streaming and next-generation IPTV, advanced cloud-based storage, and communication via HD video. The standard will comfortably serve the broadband access needs of small-to-medium enterprises, with other envisioned applications including backhaul for small wireless cell sites and Wi-Fi hotspots," the ITU said in a statement. The new standard is expected to complement the fibre to the home (FTTH) technologies in scenarios where G.fast is a more cost-efficient strategy. First certified G.fast implementations are expected to appear on the market before the end of 2015. Read more -here-
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Moimme - 2014-12-09 16:39
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Gfast : c'est quoi au juste ? On à déjà l'DASL, l'ADSL2+(28 Mbits/s sur les courtes distances mais 4Mbits/s quand même grâce à FreeTélécom à 4km malgré les lignes pourries de orangeTélécom), le VDSL et le VDSL2+ (valables que sur les courtes distances). Les fréquences ne sont pas illimitées et la technologie la plus performante est celle de Free. Gfast ressemble à un simple reétiquetage marketing. Soyons clair : rien ne remplace la fibre. La fibre multimode de Free et Sfr bien sur, pas la monomode pas chère de orangetélécom qui est obsolète. What's gfast : a rebranded VDSL ? What a pity that a big country like usa is so late in speed and technology compared to the rest of the world ! Lack of competition in that country bring his citizens in the bottom of the internet world. Europe and his permanent competition has good sides !
G.fast is not VDSL. G.fast allows for speeds of up to 1Gbps, and is intended for short distances, i.e. if there is fiber to the street, you can cover that last short distance to customer premises (bring that high speed) over existing copper wiring, without the need for fiber and new expensive equipment (where cost would be passed on to the consumer anyway). A study in the UK by British telecom shows that over 80% of their customers would be within 66 meters from distribution points and can benefit from G.fast.
Standards are there for a reason, it has nothing to do with USA vs. the rest of the world. Actually, Europe's urban environments can probably benefit more from that standard than the U.S. because of distance limitations.
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