ZICHRON YAACOV, Israel Israeli fabless semiconductor company Provigent Inc. has introduced ProviBand, a technology that enables point-to-point systems based on Provigent’s PVG310 single-chip modem.
The company said it will support differential services over wireless backhaul infrastructure to provide bandwidth more efficiently and reduce deployment and operation expenses of next-generation cellular access networks. The modem integrates all the physical layer baseband functionality, including modulator, demodulator and forward error correction, as well as software-programmable data rates, modulation schemes and bandwidth.
Provigent develops broadband wireless transmission technologies that allow two data streams on two polarizations of a single channel to be transmitted simultaneously. The result is a doubling of net channel capacity. The chips enable transmission speeds of 311 Mbits/second over 28-MHz channels or as much as 622 Mbits/s over 50- to 56-MHz channels.
In the PVG310, the implementation of differential services is enabled by the on-the-fly adaptive code and modulation (ACM) mechanism that allows a dynamic link capacity as modulation and coding change frame by frame according to the link conditions, thus allowing more efficient use of the spectrum.