5G paves the way for next-gen IoT

| December 01, 2015

5G paves the way for next-gen IoT
The path towards 5G may be nascent, but it is something is surely gaining ground. Gerhard Fettweis, Vodafone chair professor at TU Dresden, Germany, believes he has the air interface for 5G, the next generation of cellular networks. He believes that Generalised Frequency Division Multiplexing (GFDM) could enable what he calls the Tactile Internet, a future for the Internet of Things (IoT) that is attracting support from companies including Huawei, Intel, National Instruments, Vodafone and Xilinx.

All sides agree 5G will need a new air interface to meet its ambitious goals, one not backward compatible with today's 4G LTE. A half dozen major proposals have already emerged and more are expected before the 3GPP issues the first major 5G standard with its Release 15 in 2018.
Most of the proposals are variations on today's OFDM techniques that play to the strengths of their proponents. Some experts say the battle over air interfaces is not as significant as work defining brand new techniques for massive antenna arrays and support for frequencies above 6GHz.

Nevertheless, companies and research institutes are beginning to take sides among a set of air interfaces they believe sport the greatest benefits for the industry and themselves. The differences between them involve subtle trade-offs in wireless communications techniques.

Spotlight

IoT Day has been around since 2011 as a worldwide event bringing together makers, entrepreneurs, industry leaders, and citizens to discuss, design and develop the emerging IoT, but even in the five years since, an awful lot has changed in the industry.


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