Researchers at the University of Bristol in the U.K. have found a preexisting 4G network infrastructure could help drivers make safe decisions in or near accidents.
A major factor in vehicle-related accidents is the lack of information in knowing if drivers are aware of their surroundings and road conditions. A cost-effective solution to this problem is for city-owned base stations to form a single frequency network (SFN) that will enable drivers to have the information they need to make safe decisions in or near accidents, according to the Bristol researchers.
In order to ensure that transmissions are reliable, tight bounds on the outage probability would need to be developed when the SFN is overlaid on an existing cellular network.
In addition, the researchers developed an extremely efficient transmission power allocation algorithm that can reduce the total immediate SFN transmission power by up to 20 times compared to a static uniform power allocation solution.
"We have shown that our proposed power allocation [PA] model can help to significantly reduce the transmission power of the proposed network while target signal-to-noise and interference ratio [SINR] outage constraints are met," says Bristol's Andrea Tassi.
From University of Bristol News
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