NEC to break speed barriers of microwave transmission with 2048QAM implementation


Telecomlead Team:
NEC Corp has announced that it will implement 2048 Quadrature Amplitude Modulation (2048QAM)
within its iPASOLINK product family in the second half of 2012.


The implementation is the latest breakthrough in capacity
performance of microwave radio systems used in mobile backhaul and other types
of networking applications.


NEC can deliver up to 40 percent per-channel capacity
increase to its customers, relative to the systems commonly in operation today
which employ up to 256QAM.


Furthermore, NEC’s design also supports a full
sequence of Adaptive Modulation in all steps from 2048QAM down to QPSK
(Quadrature Phase-Shift Keying). This feature allows scalable addition of
capacity without compromising the reach and availability of transmission links
deployed in the network.


“In recent times we have seen a great deal of
innovation in microwave technologies driven by the need to support next
generation networks: high capacity, new carrier frequencies, packet transport.
2048QAM is the latest development from NEC and we are confident we will
deliver further innovations,” said Atsushi Noro, deputy general manager of
NEC’s Mobile Wireless Network Division.


The company said that high modulation is the key
component in enabling high capacity and eventually delivering 10Gbps microwave
transmission in combination with multiplexing techniques such as XPIC (Cross
Polarization Interference Cancellation), RTA (Radio Traffic Aggregation) and
MIMO (Multiple-Input and Multiple-Output).


 Microwave capacities are not only comparative to
those of optical access technologies, they can also be deployed on-demand, a
critical attribute for the economical deployment of backhaul for LTE, digital
broadcast, TETRA (Terrestrial Trunked Radio), and other types of communication
networks, the company added.


Innovation and flexibility are the reasons why network
operators maintain their investment in microwave systems as they continue to
match ever growing capacity needs.


NEC will demonstrate the performance of its 2048QAM
implementation at the Mobile World Congress 2012 in Barcelona, Spain.


Recently, NEC
announced that it developed smartphone software that automatically recommends
the best path for a user’s incoming calls based on the software’s estimate of a
smartphone’s movement.


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