ClubADSL makes it possible to share ADSL with neighbours to increase capacity
Fecha de la noticia:
11/03/2009
Imagen en miniatura de la noticia:
Breve resumen:
Telefónica I+D has developed a new service making it possible to increase the capacity of residential ADSL users by sharing broadband with its nearest neighbours. These wireless access points can be connected to simultaneously and add the available uploading and downloading broadband.
Telefónica I+D has developed a new service making it possible to increase the capacity of residential ADSL users by sharing broadband with its nearest neighbours.
As the density of ADSL users increases, it is more and more common for residential users to notice numerous wireless networks within range, generally connected to other Telefónica ADSL lines.
The prototype developed by TI+D can be connected to simultaneously to these wireless access points and add the available uploading and downloading broadband.
ClubADSL only requires a wireless card and can operate with any trade access point, regardless of the operating frequency or any other parameter such as speed, encoding, etc. These characteristics mean that it is easy to implement for Telefónica ADSL users who already have systems with wireless cards.
This service is based on two essential aspects: the speed of a WiFi conection is far higher than that provided by an ADSL line. And ADSL lines are not used simultaneously 100%. Therefore, it is possible to use the broadband not used on nearby ADSL lines, using WiFi connections, without needing to change the infrastructure of ADSL lines.
The ClubADSL prototype not only achieves increased speed, but also provides an equal sharing of the broadband available among the different clients in the Club. It also provides service quality in local user traffic, giving it priority over the other members of the Club.
Telefónica I+D is using a similar technology to broaden Internet coverage by using lattice networks. On these networks, information moves by jumps over wireless rather than fixed links. With sufficient client density in ClubADSL, it is possible to hold communications without needing to use ADSL lines. The performance given by lattice network technologies in TCP based applications (streaming video or Voice on IP) is considerably reduced. Telefónica I+D has developed protocols based on the Network Coding technology in order to reduce the impact of lattice networks on these protocols to a minimum.