Fiber Extension Alternatives
Most cities offer connection to the Internet backbone through fiber connections in, or close to, buildings. The problem is the last meter access, distributing the signal to the homes. Installing new in-building data cables is intuitive and technically attractive. But this solution is expensive and installation creates a lot of nuisances.
A more attractive alternative is to use already existing in-house infrastructure, which exists in two forms, telephone wires and a coaxial network for TV distribution. Telecom operators prefer to use phone wires with VDSL. VDSL suffers from slow speed and is sensitive to interference.
FTTB applications for apartment buildings have several benefits over FTTN street cabinet deployments. Local power supply is always available in the building and the climate is in-door. It is also possible to serve business customers with Gbps services, which provides higher flexibility. An FTTB installation is also more future-proof, since the fiber is available much closer to subscribers’ apartment than the FTTN street cabinets.
Why Fiber Extension over Coax?
Today, on average European homes have 2,7 TV sets connected to the in-building coaxial network, mainly serving digital TV broadcasting, terrestrial or over cable. The development of new playservices, offered by broadcasters or by online movie providers, as BBC iPlayer and Netflix, changes the way we watch TV. The traditional TV set has been upgraded to a large screen TV that requires high-resolution delivery for good picture quality, which drives the transformation from standard definition (SD) to high definition (HD). At the same time a market investigation shows that 30% of the younger generation (13-32 years) refrains from watching live prime time TV.
To meet this transformation from traditional TV distribution to distribution over IP through devices as Smart-TV, laptops and tablets, broadband operators must increase the capacity both in the backbone networks and the capacity delivered to each home.
The Coaxial Cable network already reaches all home entertainment hubs without new wiring, to meet future TV revolutions.
Fiber Extension over Coax
InCoax Fiber Extension over Coax uses the free capacity above the TV spectrum. It uses the frequency spectrum 950MHz -1525MHz, with four different RF-channels. Each channel can communicate up to 175 Mbps data today and in near future up to 400 Mbps, increasing capacity over a coaxial network branch from 700Mbps to 1,6Gbps.
An in-building coaxial network can have a star or cascade typology, or a combination of both. With star typology each antenna outlet is reached from the basement. With cascade typology several subscribers are connected on a single coaxial cable branch. On a cascade branch up to 6 antenna outlets can be connected. The different cascade loops are connected together in the basement, or loft. Today, with InCoax, it is possible to deliver 700 Mbps broadband capacity, over 4 RF-channels, to each cascade loop branch. InCoax Fiber Extension over Coax can easily provide Gigabit capacity within the building. The InCoax Fiber Extension Node is connected after the cable-TV amplifier and uses the passive coaxial cable for broadband connectivity.
Benefits with Fiber Extension over Coax
InCoax Fiber Extension over Coax has several benefits, compared to other access alternatives as Fiber, CAT6, ADSL and VDSL. It uses free spectrum capacity in existing coaxial cables and reaches the home entertainment hub. InCoax Fiber Extension over Coax is also future-proof since the coaxial cables has capacity to deliver Gigabit.
- Can support up to 1Gbps per subscriber
- Reach home entertainment hub
- No new in-home wiring
- No new in-building wiring
- No apartment visit and no apartment key handling
- Fast in-building deployment
- Customer installable home modems