- Drone swarms could serve as temporary cell towers in the event of a network outage
- AURA-GreeN simultaneously balances delay, power consumption and signal reliability
- Data freshness improves significantly by reducing information age
Mobile networks are built around fixed towers, but this model often runs into difficulty when demand increases or infrastructure fails unexpectedly.
A Stevens Institute of Technology research effort is exploring a different approach, in which coordinated drones act as temporary cell towers that extend or stabilize coverage when ground systems aren’t enough.
The idea does not reject existing infrastructure, but works alongside it, forming a flexible layer capable of responding to changing conditions in real time.
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A network that adapts in the air
The system, known as AURA-GreeN, relies on multiple drones that operate as mobile radio units rather than fixed transmission points.
These aerial nodes communicate with each other and with users, adjusting their positions and roles based on current network conditions, allowing the system to behave like a network that pops up when needed rather than like a permanently installed network.
“This will be especially felt in large cities with large populations and fewer spaces to add more cell towers,” says Ying Wang, associate professor in the Stevens Department of Systems Engineering.
“In busy cities, especially during situations such as traffic management, disasters or search and rescue operations, we need fast and reliable wireless communication,” she adds.
The system continuously evaluates signal quality, interference and traffic load, then decides how to route data and distribute available spectrum.
This dynamic coordination attempts to keep connections stable even when conventional networks are congested or partially unavailable.
AURA-GreeN also extends its role beyond simply maintaining coverage by focusing on the efficiency with which information flows through the network.
Rather than just ensuring connectivity, the system evaluates how current and relevant the transmitted data remains, a concept that researchers describe as the “information age.”
This adds another layer to how performance is evaluated, especially in situations where timing is critical.
“This keeps the ‘information age’ low, meaning the data you see is still very recent and accurately reflects what’s happening now,” says doctoral student Ishan Aryendu.
“We’ve seen a 460% improvement in the information age. »
At the same time, the system handles multiple demands, including reducing delays, efficiently allocating spectrum, maintaining stable connections, and operating within energy limits.
However, balancing these priorities is not without challenges, as improvements in one area can put pressure on others.
Although test results appear promising, real-world deployment may introduce constraints that are not fully reflected in controlled environments.
Beyond emergency situations, the system could support large gatherings where smartphone networks might face sudden demand.
The researchers note that entry-level drones used for filming can also provide coverage, adding that “we rely on drones that are already providing event coverage.”
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