- Drone swarms could act as temporary cell towers during network outages
- AURA-Green balances delay, power usage and signal reliability simultaneously
- Data freshness is significantly improved by reducing the age of information.
Mobile networks are built around fixed towers, but this model often runs into problems when demand increases or infrastructure fails unexpectedly.
A Stevens Institute of Technology research effort is exploring a different approach, where coordinated drones act as temporary cell towers that expand or stabilize coverage when ground systems fail.
The idea does not discard existing infrastructure, but rather works alongside it, forming a flexible layer that can respond to changing conditions in real time.
Article continues below.
A network that adapts in the air
The system, known as AURA-GreeN, relies on multiple drones that function as mobile radio units rather than fixed transmission points.
These air nodes communicate with each other and with users, adjusting their positions and roles based on current network conditions, allowing the system to behave as a network that appears when needed rather than a permanently installed network.
“This will be felt particularly strongly in large cities with large populations and fewer spaces to add more cell towers,” says Ying Wang, associate professor in Stevens’ Department of Systems Engineering.
“In cities with heavy traffic, especially during situations such as traffic management, disasters or search and rescue, we need fast and reliable wireless communication,” he adds.
The system continually evaluates signal quality, interference and traffic load, then decides how to route the data and distribute the available spectrum.
This dynamic coordination attempts to keep connections stable even when conventional networks are congested or partially unavailable.
AURA-GreeN also expands its role beyond simply maintaining coverage, focusing on the efficiency with which information moves across the network.
Rather than simply ensuring connectivity, the system assesses how current and relevant transmitted data remains, a concept researchers describe as the “information age.”
This adds another layer to the way performance is evaluated, especially in situations where time is critical.
“It keeps the ‘information age’ low, meaning that the data you see is always very recent and accurately reflects what is happening right now,” says Ishan Aryendu, a PhD candidate.
“We saw that there was a 460% improvement in the information age.”
At the same time, the system manages multiple demands, including reducing delays, efficiently allocating spectrum, maintaining stable connections, and operating within power limits.
However, balancing these priorities is not without challenges, as improvements in one area can put pressure on others.
While test results appear promising, real-world implementation may introduce limitations that are not fully reflected in controlled environments.
Beyond emergencies, the system could support large gatherings where smartphone networks could face sudden demand.
The researchers note that novice drones used for filming can also provide coverage, adding that “we are leveraging drones that already provide coverage of the event.”
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