Researchers achieve “world record” spectral efficiency with massive MIMO

Researchers at Bristol University and Lund University have demonstrated 128 antenna MIMO that has achieved very high spectral efficiencies, and could be significant for 5G radio interface design. A press release from Bristol University claimed that it had achieved a spectral efficiency – expressed as bits per second per Hertz – of 1.59Gbit/s in a 20MHz channel. That represents a 12x improvement on current LTE cellular efficiencies, and is a “world record” according to the PR headline. The research team were conducting…

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Components of a 5G architecture

The devil is in the detail, they say, and when it comes to 5G there is a lot of detail still to be thrashed out. Quite how much detail is evident in the latest whitepaper – 5G RAN Architecture and Functional Design – delivered by 5G-PPP’s METIS-II. The paper raises a lot of questions, but can come to very few definitive answers as yet, although it does propose a number of likely answers to each question. These include new AI design,…

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National pride in “leading 5G” is a barrier to 5G development

This week the UK’s treasury chief repeated his Government’s desire to make the UK a world leader in 5G. Similarly, EC Digital Commissioner Guther Oettinger was off again on his desire to position Europe as a 5G leader. Despite the increasing tendency of governments to talk of a country, or even region, “leading in 5G” it is empty talk. There are only two potential ways to “lead in 5G”, one is in leading the technology development that goes towards 5G.…

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mmWave critical to future of 5G in USA

NYU Wireless makes 5G Channel Simulator software available for commercialised mmWave radio A 5G conference and workshop organised by US communications regulator the FCC has heard that Millimeter Wave (mmWave) frequencies are key to realising the promise of 5G networks. Speakers from NYU Wireless, Google, Verizon and and a clutch of vendors repeated the message that only frequencies in the mmWave bands provide wide enough channel bandwidth and propagation characteristics suitable to meet the future demands that wireless networks will…

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