Nature-inspired device avoids jamming, could enable smarter and less expensive use of wireless communication bandwidth
For the first time, researchers have demonstrated a light-based device that mimics a fish’s incredible jamming avoidance response (JAR) by moving the frequency of an emitted signal away from other signals that could potentially cause interference. The new system could eventually help overcome the spectral bandwidth crunch caused by ever increasing numbers of wireless devices and transmitted data competing for space on a limited amount of available bandwidth.
Eigenmannia are cave-dwelling fish that live in complete darkness. To survive without the presence of light, the fish emit an electric field to communicate with other fish and to sense the surrounding environment. When two fish emit signals at similar frequencies they can interfere with each other, or jam, creating a scrambled signal. Thanks to a unique neural algorithm, these fish can adjust their electric communication signals so that they don’t interfere with those coming from other nearby fish.
“We think that humans could use the same jamming avoidance response neural algorithm as the Eigenmannia, but at a much faster speed and frequency,” said research team leader Mable P. Fok from the University of Georgia. “This could allow a smarter and more dynamic way to use our wireless communication systems without the need for the complicated coordination processes that currently prevent jamming by reserving whole sections of bandwidth for specific phone carriers or users such as the military.”
In The Optical Society (OSA) journal Optics Express, the researchers demonstrated a light-based, or photonic, JAR that can be used to avoid jamming. They showed that the system performs much like the Eigenmannia’s JAR in that it detects whether another signal could present a jamming problem and then intelligently shifts its emitting signal higher or lower in frequency so that it moves away from the jamming signal without crossing its frequency, which would amplify the jamming.
Because the jamming avoidance system is light-based, only slight adjustments are needed to use it with a wide range of frequencies: from the megahertz frequencies used for radio and GPS communication to the gigahertz signals used by cell phones and radars. Using a light-based device also allows faster automatic response to a potential jamming signal than an electronic system could accomplish.
Cutting down the interference
The new technology could help with signal interference in several areas. For example, it could be used to avoid unintentional jamming when radars aboard planes or military vehicles are operating in the same area. It could also be used in environments such as hospitals where wireless devices can interfere with wireless transmissions coming from medical instruments.
“Eventually, this approach could be used to achieve effective use of the wireless spectrum by allowing wireless devices to automatically move to a frequency that doesn’t interfere with other signals nearby,” said Fok. “This could bring down the cost of using the wireless spectrum because service providers would not have to pay to reserve large amounts of bandwidth. This, in turn, could make it more affordable to bring mobile technology to developing countries, where it could be used to support important services such as telemedicine or distance learning.”
The new photonic JAR system uses an off-the-shelf optical component known as a semiconductor optical amplifier (SOA) to mimic the Eigenmannia’s JAR. The SOA identifies the properties of its own emitted signal and uses that as a reference to detect a potential jamming and to determine if that signal is higher or lower in frequency. It then moves the emitted signal away from the potential jamming signal.
“To create the photonic system, we had to understand how neurons in Eigenmannia carry out the JAR and then translate that from an engineering viewpoint into a photonic design,” said Fok. “Because the SOA actually acts very much like a neuron it could be used to do all the necessary tasks.”
The researchers tested their photonic JAR using various types of jamming signals in the microwave region of the electromagnetic spectrum, which is used for local area wireless networks such as Bluetooth. “We could see the photonic JAR system move the signal frequency when a jamming signal was approaching and stop moving if the jamming frequency was moving away,” said Fok. “It happened automatically, almost as if it were alive.”
The researchers are now working to improve the system so that it can respond to more than one jamming signal nearby. They also want to make the system portable and more user friendly for non-technical users.
The Latest on: Wireless bandwidth crunch
via Google News
The Latest on: Wireless bandwidth crunch
- As 5G demand grows, Sitenna helps telcos find more cell tower locations, fasteron August 27, 2021 at 6:45 am
Because of the spectrum that 5G technology uses compared to 4G, telecom operators need to install many times more towers to deliver the advertised bandwidth ... to 5G wireless, that wave doesn ...
- Li-Fi Market Size Forecast to Reach $294.2 Million by 2026on August 20, 2021 at 7:00 pm
Li-Fi Market” Rise in Penetration of Smart Devices, Construction of Smart Cities and Commercial Establishments Boosts the Li-Fi market Growth. The Global ...
- 4G crunch: Ultrafast mobile internet still snarled upon August 16, 2021 at 5:00 pm
WITH 4G wireless networks promising a future filled ... Still, iPad users already stream video on the go, and the thirst for ever more bandwidth for ever better images seems insatiable. The crunch is ...
- Best cloud hosting services in 2021on August 16, 2021 at 3:55 am
An entry-level cloud hosting plan includes just one CPU, 1GB of RAM, and 500GB of bandwidth and costs $110.95 a month. If you need enough computational power to crunch a lot of data—say ...
- Exclusive Interview: Broadcom’s Ravi Manik explains how their low-power small cell technology can help Indian telcoson August 13, 2021 at 4:59 pm
Our email questionnaire sought answers to issues like the spectrum crunch in India and how ... While consumers will reap the reward of the added bandwidth, the expansion requires carriers to ...
- The Truth Behind Getting Business Internet Service: Is It Worth the Cost?on August 11, 2021 at 7:54 am
The world as we know it changed significantly over the last year and a half. For starters, many small businesses cropped up by people laid off by business corporations to sustain themselves. These ...
- Cricket's new tiered data plans seem like a model for the industry to uson August 2, 2021 at 5:00 pm
particularly in light of the spectrum crunch the FCC keeps warning us about. Or are they? One great band-aid rarely explored by North American carriers is the concept of bandwidth throttling ...
- NEWS TAGGED SERVER, IPC, CLOUD COMPUTING, IOTon July 27, 2021 at 4:59 pm
Public cloud service providers, including Amazon Wireless Services (AWS), Azure ... After the peak of component crunch in the second quarter along with insufficient inventory in the third quarter ...
- Carriers dig deeper hole with lack of innovative 4G LTE pricing, Ovum sayson April 16, 2021 at 8:14 pm
Wireless carriers around ... surrounding tiered data plans and bandwidth throttling, Ovum believes such models are necessary to combat the growing capacity crunch plaguing cellular service providers.
via Bing News