When a natural disaster strikes and too many people take to their mobile phones at once, cellular networks easily overload.
But a University of British Columbia graduate student has developed a solution to ensure that calls don’t get dropped and texts make it to their destination.
In a study published in the journal IEEE Transactions on Wireless Communications, Mai Hassan, a PhD student in the Department of Electrical and Computer Engineering, found a way to opportunistically use television and radio channels to transmit cellular signals when systems are pushed beyond capacity.
“I proposed a more effective way to use any channel in the neighborhood, even if those channels are being used by radio or television stations,” said Hassan. “The challenge was finding a way to make sure the cellular signals didn’t interfere with the people using those channels in the first place.”
Hassan’s solution involved changing the shape of the wireless signal so she could transmit on channels that use radio or television frequencies. She then had to change the direction of transmission away from the original channel. Instead of using traditional antennas, which transmit signals in all directions, she used smart antennas in mobile phones. Smart antennas transmit signals in a single direction and can steer the beam to any direction. By manipulating the direction of the cellular signals, Hassan was able to transmit calls and texts to a receiver while avoiding any interference with the original radio and televisions signals.
Professors Jahangir Hossain, in the School of Engineering at UBC’s Okanagan campus, and Vijay Bhargava, in the Department of Electrical and Computer Engineering at UBC’s Vancouver campus, supervised this research.
A problem into an opportunity
Go deeper with Bing News on:
- Manufactured-Housing Tycoon Arthur J. Decio Built National Networkon November 13, 2020 at 7:15 am
Arthur J. Decio, a philanthropist who has died at age 90, appeared on the cover of Time magazine as a highflying executive during the 1960s.
- Inland Cellular Brings Critical 4G Broadband to Rural Areas Using Intelsat CellBackhaulon November 13, 2020 at 6:40 am
Intelsat and Inland Cellular are partnering to bring reliable 4G LTE broadband coverage to people in rural areas of Washington state.
- Rakuten Mobile doubles down on network investmenton November 12, 2020 at 10:25 pm
Rakuten Mobile stepped up its network investment in Q3 as it doubled base station installations to 1,500 a month, with capex expected to remain inflated for the next three quarters. In a briefing, CTO ...
- Amazon GameOn is a social network for mobile gameplay clipson November 12, 2020 at 6:02 pm
Amazon isn’t exactly a company you’d associate with gaming, except perhaps as a backend platform with AWS, but it’s not for a lack of trying. It bought game streaming platform ...
- Rakuten Mobile speeds up its network deployment by 5 yearson November 12, 2020 at 2:29 pm
In order to accelerate its network build-out, it’s doubling the rate of new site deployments from 750 sites per month to 1,500 per month.
Go deeper with Google Headlines on:
Go deeper with Bing News on:
Microplastics in water
- The danger we need to face in our Blue Homelandon November 12, 2020 at 1:05 pm
Water covers nearly 70% of the surface of our planet – which is why it is called the "Blue Planet" – and the seas and the oceans hold about 97.5% of all of ...
- Microplastics found in Las Vegas Wash, Lake Tahoe fuel researchon November 10, 2020 at 8:17 pm
The discoveries are leading them to question whether clothing dryer vents are emitting microplastics into the environment.
- Northland lakes in world-first microplastics studyon November 9, 2020 at 8:26 am
Two Northland dune lakes are part of a ground-breaking international study measuring the presence of microplastics in lakes. Microplastics — tiny pieces of plastic waste, often invisible to the naked ...
- Risk of plastic contamination in drinking tea from disposable paper cups, suggests Studyon November 8, 2020 at 11:58 am
Goel, explained that the homogeneously mixed water was then analysed for the presence of microplastics as well as additional ions that may have leached into the liquid from the paper cups. In the ...
- IIT study cites risk of plastic contamination in drinking tea from disposable paper cupson November 8, 2020 at 4:08 am
A person drinking three cups of tea in disposable paper cups will end up ingesting 75,000 tiny microplastic particles’ ...