X-Nico

unusual facts about Orthogonal frequency-division multiplexing



Distributed element filter

Distributed element filters are used in many of the same applications as lumped element filters, such as selectivity of radio channel, bandlimiting of noise and multiplexing of many signals into one channel.

EDPnet

Edpnet has its own fully redundant transcontinental fiber network based on the latest DWDM technology.

Highgate Wood telephone exchange

He also announced on that day the building of three more advanced electronic exchanges to be installed and in operation within the next two years at Goring-on-Thames (high speed TDM 100 channel), Pembury (Low speed TDM 30 channel), and at Leighton Buzzard.

Hui Liu

After that, he worked as a chief scientist at the Cwill Telecom and by 2000 became a founder of Adaptix at which he developed many broadband networks which used OFDMA in cellphones.

Intercom

Multiple channels of simultaneous conversations can be carried over additional conductors within a cable or by frequency- or time-division multiplexing in the analogue domain.

Looking Glass Networks

The company provides rapid delivery of data transport services including SONET/SDH, Wavelength-division multiplexing and Ethernet as well as IP connectivity, dark fiber and carrier-neutral colocation.

Lyot filter

Although their mechanisms are different, modelocking lasers and Lyot-filter lasers both produce a comb of multiple wavelengths which can be placed on the ITU grid for Dense Wave Division Multiplexing (DWDM) or used to give each suburban home its own return-signal laser wavelength in a passive optical network (PON) used to provide FTTH (Fiber To The Home).

MiNET

Mitel Corporation designed it in the 1980s as a signaling protocol for its proprietary digital TDM telephone sets.

Polarization-division multiplexing

Over a long-distance system, these drifts accumulate progressively without limit, resulting in rapid and erratic rotation of the polarized light's Jones vector over the entire Poincaré sphere.

WiMAX

Modulation is chosen to be more spectrally efficient (more bits per OFDM/SOFDMA symbol).


see also