The findings of this study were published in the Wireless Networks. The study was led by Dr. Siddhartha Sarma, Assistant Professor, School of Computing and Electrical Engineering, IIT Mandi, and co-authored by his student Shivam Gujral, PhD Scholar, School of Computing and Electrical Engineering, IIT Mandi.
IIT Mandi team develops wireless powering, communication technology for IoT applications
A team of researchers at the Indian Institute of Technology (IIT) Mandi is working towards developing efficient remote powering and communication technology for futuristic Internet of Things applications. The findings of this study were published in the Wireless Networks. The study was led by Dr. Siddhartha Sarma, Assistant Professor, School of Computing and Electrical Engineering, IIT Mandi, and co-authored by his student Shivam Gujral, PhD Scholar, School of Computing and Electrical Engineering, IIT Mandi.
The Internet of Things (IoT) is a collection of objects (“things”) that can exchange data with each other through the Internet. IoT devices range from ordinary household appliances in a “smart” home to sophisticated industrial and scientific tools. These smart things are equipped with sensors, chips, and software that must be powered and stay in communication with other devices at all times. Simplistic power sources such as batteries may be unsuitable for such applications because of the constancy of power required, and because some of these “things” may be embedded or hidden, which makes changing batteries difficult. There is thus worldwide research in combining remote communication technology with remote powering options.
Highlighting his research, Shivam Gujral, Ph.D. Scholar, School of Computing and Electrical Engineering, IIT Mandi, said, “We have developed a cooperative model, in which, backscatter communication and radiofrequency energy harvesting (RF-EH) devices act together to optimally allocate the resources such as time and antenna weights.”
The team performed research on two such powering options - radio frequency energy harvesting (RF-EH) and backscatter communication. In RF-EH, energy is transmitted by a dedicated transmitter to the IoT device through radio waves, the same kind of waves that are used in mobile phones for communication. In backscatter communication, as before, power is transmitted via radio waves, but with/without the need for a dedicated transmitter. Instead, RF signals available in the vicinity, such as WiFi, cell phone signals, etc, are harnessed through reflection and backscatter to power the IoT objects.
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