Some of the biggest hurdles in reaching 6G communications – more data sent much faster on unrestricted bandwidth – could have been unlocked by a team of scientists in Australia.
They say they have developed a polarisation multiplexer that significantly improves current availability that could be key to realising the ambitions of 6G mobile tech.
The multiplexer makes it possible for several input signals to share one device or resource – such as the data of several phone calls being carried on a single wire.
6G – the next generation of wireless communication – expands on the infrastructure of 5G but will also be designed to surpass it.
6G aims to operate at one terabyte – 1,000 gigabytes of data at one microsecond, while 5G delivers 20 gigabytes at 1,000 microseconds.
The scientists from The University of Adelaide, whose work is published in the journal Laser & Photonic Reviews, say their work brings 6G communications much closer.
“Our proposed polarisation multiplexer will allow multiple data streams to be transmitted simultaneously over the same frequency band, effectively doubling the data capacity,” said Prof Withawat Withayachumnankul from Adelaide’s School of Electrical Engineering.
“This large relative bandwidth is a record for any integrated multiplexers found in any frequency range.”
The terahertz frequencies – which can support unprecedented bandwidth – allow ultra-fast wireless communication and data transfer, but there have been problems in effectively managing and utilising the spectrum.
The Adelaide multiplexer could help answer those issues.
The new device effectively doubles communication capacity under the same bandwidth with lower data loss than existing devices.
“This innovation not only enhances the efficiency of terahertz communication systems but also paves the way for more robust and reliable high-speed wireless networks,” said Dr Weijie Gao, a postdoctoral researcher collaborating with Prof Masayuki Fujita at Osaka University.
“As a result, the polarisation multiplexer is a key enabler in realising the full potential of terahertz communications, driving forward advancements in various fields such as high-definition video streaming, augmented reality and next-generation mobile networks.”
The work significantly advances the practicality of terahertz technologies.
“By overcoming key technical barriers, this innovation is poised to catalyse a surge of interest and research activity in the field,” said Prof Fujita, who is a co-author of the paper.
“We anticipate that within the next one to two years, researchers will begin to explore new applications and refine the technology.”
SPECS
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Section 375
Cast: Akshaye Khanna, Richa Chadha, Meera Chopra & Rahul Bhat
Director: Ajay Bahl
Producers: Kumar Mangat Pathak, Abhishek Pathak & SCIPL
Rating: 3.5/5
TEACHERS' PAY - WHAT YOU NEED TO KNOW
Pay varies significantly depending on the school, its rating and the curriculum. Here's a rough guide as of January 2021:
- top end schools tend to pay Dh16,000-17,000 a month - plus a monthly housing allowance of up to Dh6,000. These tend to be British curriculum schools rated 'outstanding' or 'very good', followed by American schools
- average salary across curriculums and skill levels is about Dh10,000, recruiters say
- it is becoming more common for schools to provide accommodation, sometimes in an apartment block with other teachers, rather than hand teachers a cash housing allowance
- some strong performing schools have cut back on salaries since the pandemic began, sometimes offering Dh16,000 including the housing allowance, which reflects the slump in rental costs, and sheer demand for jobs
- maths and science teachers are most in demand and some schools will pay up to Dh3,000 more than other teachers in recognition of their technical skills
- at the other end of the market, teachers in some Indian schools, where fees are lower and competition among applicants is intense, can be paid as low as Dh3,000 per month
- in Indian schools, it has also become common for teachers to share residential accommodation, living in a block with colleagues
Indika
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Brief scores:
Arsenal 4
Xhaka 25', Lacazette 55', Ramsey 79', Aubameyang 83'
Fulham 1
Kamara 69'
Heather, the Totality
Matthew Weiner,
Canongate
Profile
Name: Carzaty
Founders: Marwan Chaar and Hassan Jaffar
Launched: 2017
Employees: 22
Based: Dubai and Muscat
Sector: Automobile retail
Funding to date: $5.5 million
THURSDAY FIXTURES
4.15pm: Italy v Spain (Group A)
5.30pm: Egypt v Mexico (Group B)
6.45pm: UAE v Japan (Group A)
8pm: Iran v Russia (Group B)
Specs
Engine: Dual-motor all-wheel-drive electric
Range: Up to 610km
Power: 905hp
Torque: 985Nm
Price: From Dh439,000
Available: Now
White hydrogen: Naturally occurring hydrogen
Chromite: Hard, metallic mineral containing iron oxide and chromium oxide
Ultramafic rocks: Dark-coloured rocks rich in magnesium or iron with very low silica content
Ophiolite: A section of the earth’s crust, which is oceanic in nature that has since been uplifted and exposed on land
Olivine: A commonly occurring magnesium iron silicate mineral that derives its name for its olive-green yellow-green colour
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Mercer, the investment consulting arm of US services company Marsh & McLennan, expects its wealth division to at least double its assets under management (AUM) in the Middle East as wealth in the region continues to grow despite economic headwinds, a company official said.
Mercer Wealth, which globally has $160 billion in AUM, plans to boost its AUM in the region to $2-$3bn in the next 2-3 years from the present $1bn, said Yasir AbuShaban, a Dubai-based principal with Mercer Wealth.
“Within the next two to three years, we are looking at reaching $2 to $3 billion as a conservative estimate and we do see an opportunity to do so,” said Mr AbuShaban.
Mercer does not directly make investments, but allocates clients’ money they have discretion to, to professional asset managers. They also provide advice to clients.
“We have buying power. We can negotiate on their (client’s) behalf with asset managers to provide them lower fees than they otherwise would have to get on their own,” he added.
Mercer Wealth’s clients include sovereign wealth funds, family offices, and insurance companies among others.
From its office in Dubai, Mercer also looks after Africa, India and Turkey, where they also see opportunity for growth.
Wealth creation in Middle East and Africa (MEA) grew 8.5 per cent to $8.1 trillion last year from $7.5tn in 2015, higher than last year’s global average of 6 per cent and the second-highest growth in a region after Asia-Pacific which grew 9.9 per cent, according to consultancy Boston Consulting Group (BCG). In the region, where wealth grew just 1.9 per cent in 2015 compared with 2014, a pickup in oil prices has helped in wealth generation.
BCG is forecasting MEA wealth will rise to $12tn by 2021, growing at an annual average of 8 per cent.
Drivers of wealth generation in the region will be split evenly between new wealth creation and growth of performance of existing assets, according to BCG.
Another general trend in the region is clients’ looking for a comprehensive approach to investing, according to Mr AbuShaban.
“Institutional investors or some of the families are seeing a slowdown in the available capital they have to invest and in that sense they are looking at optimizing the way they manage their portfolios and making sure they are not investing haphazardly and different parts of their investment are working together,” said Mr AbuShaban.
Some clients also have a higher appetite for risk, given the low interest-rate environment that does not provide enough yield for some institutional investors. These clients are keen to invest in illiquid assets, such as private equity and infrastructure.
“What we have seen is a desire for higher returns in what has been a low-return environment specifically in various fixed income or bonds,” he said.
“In this environment, we have seen a de facto increase in the risk that clients are taking in things like illiquid investments, private equity investments, infrastructure and private debt, those kind of investments were higher illiquidity results in incrementally higher returns.”
The Abu Dhabi Investment Authority, one of the largest sovereign wealth funds, said in its 2016 report that has gradually increased its exposure in direct private equity and private credit transactions, mainly in Asian markets and especially in China and India. The authority’s private equity department focused on structured equities owing to “their defensive characteristics.”
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Specs
Engine: 51.5kW electric motor
Range: 400km
Power: 134bhp
Torque: 175Nm
Price: From Dh98,800
Available: Now
Key findings
- Over a period of seven years, a team of scientists analysed dietary data from 50,000 North American adults.
- Eating one or two meals a day was associated with a relative decrease in BMI, compared with three meals. Snacks count as a meal. Likewise, participants who ate more than three meals a day experienced an increase in BMI: the more meals a day, the greater the increase.
- People who ate breakfast experienced a relative decrease in their BMI compared with “breakfast-skippers”.
- Those who turned the eating day on its head to make breakfast the biggest meal of the day, did even better.
- But scrapping dinner altogether gave the best results. The study found that the BMI of subjects who had a long overnight fast (of 18 hours or more) decreased when compared even with those who had a medium overnight fast, of between 12 and 17 hours.
