A real-life word problem from the world of retail supermarkets.
One of our ECE seniors, Martin Sebastian Ferndandez, has compiled a great lecture series on YouTube for learning/reviewing differential equations. The series follows topics in MATH 2552 Differential Equations, one of the required engineering courses offered by the GT Math school. A great resource for students and researchers alike.
This lecture presents the concept of multi-antenna backscatter signaling with multiple reader and tag antennas. The key paper for review is Josh Griffin’s ground-breaking work on MIMO signaling with backscatter tags. We also discuss the interesting small-scale fading behaviors that can arise in these scenarios.
WWB12: Multi-Antenna Signaling
Paper: J.D. Griffin, G.D. Durgin. “Multipath Fading Measurements at 5.8 GHz for Backscatter Tags With Multiple Antennas.” IEEE Transactions on Antennas and Propagation, vol 58, no 11, Nov 2010.
Introductory lesson on the use of load modulation to transfer information from an antenna to a reader. The lecture describes how to construct a link budget given all of the realistic effects encountered in the terrestrial backscatter world.
WWB11: Modulated Backscatter
Paper: J.D. Griffin, G.D. Durgin. “Complete Link Budgets for RFID and Backscatter Radio.” IEEE Antennas and Propagation and Magazine, April 2009. 10 pages.