It is made up of four pairs of fibre-optic cable and uses synchronous digital hierarchy and wave division multiplexing. The cable is a TAT-14 which will link Denmark, France, Germany, the Netherlands and the UK.
The network relies on Nortel's Dense Wave Division Multiplexing to offer speeds of up to 10Gbps. Esprit Telecom has launched a networks division devoted to selling bandwidth to rival carriers. The companies are already using Esprit's London-Paris...
Nortel is taking the dense wavelength division multiplexing approach - which combines different coloured streams of laser light onto one strand of fibre. The new compression method will see a single strand of fibre carry 160 high-speed data streams...
In the 802.11g standards battle, PBCC eventually lost ground to OFDM, or Orthogonal Frequency Division Multiplexing, as the modem of choice. The technique TI uses to boost turbo Wi-Fi's speed is known as PBCC (Packet Binary Convolutional Coding).
The opposing technology approaches are orthogonal frequency division multiplexing (OFDM) and direct sequence (DS)-UWB. The former method, backed by Intel, is more complex: it chops up the signal and sends it over multiple frequency bands.
Csiro claims its patent covers a core method for transmitting wireless signals that use orthogonal frequency division multiplexing (OFDM) modulation, which breaks signals into different parts to transmit data simultaneously over different...
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