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For several years, the data rate and volume have increased continuously bringing more services, like TV on demand and Gaming. For fixed network, fibre to the home brings the higher data-rate and architecture is simple and reliable, however the replacement of last copper drop to customer has a high cost. In some case, it can be more economic to place broadband nodes such as MSAN (Multiple Services...
An architecture combining optical fiber and wireless fronthaul is introduced. Tests have been performed on a LTE fronthaul link measuring the impact of this combination on EVM, jitter and frequency accuracy.
Since the 70th, France Telecom R&D has made researches to use solar and renewable energy for powering remote sites. This work includes sizing algorithms, new solutions for battery management, hybrid sources, remote management and several laboratory or field experimentations. The accelerated development of telecom in the world (wireless, broadband access), in a context of environmental concern...
Since the 1990s, France Telecom R&D, have investigated and experimented with different solutions for high-speed access networks on existing copper pairs. The first commercial product was ISDN and recently the deployment of ADSL. For these 2 networks, there was no need of active equipment along the path to the customer and consequently no special powering problem. In the future, still higher rate...
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