Magneto-Inductive Communication and Localization
Author | : Gregor Dumphart |
Publisher | : Logos Verlag Berlin GmbH |
Total Pages | : 261 |
Release | : 2022-06-15 |
ISBN-10 | : 9783832554835 |
ISBN-13 | : 3832554831 |
Rating | : 4/5 (35 Downloads) |
Book excerpt: Utilizing magnetic induction for wireless communication, wireless powering, passive relaying, and localization could enable massive wireless sensor applications with tiny nodes in challenging media, foremost biomedical in-body sensor networks. This work investigates the performance limits of these unique wireless systems with hardly any assumptions. As a foundation, a general system model and an interface to communication theory are developed. A major part of this work identifies two crucial magneto-inductive fading channels: that between randomly oriented coils and that caused by a nearby swarm of resonant passive relay coils. The analysis yields important technological implications. Based thereon, an investigation of wirelessly-powered in-body sensors is conducted, revealing their active and passive data transmission capabilities. Finally, a treatise of magneto-inductive node localization develops algorithms that perform near identified accuracy limits in theory and practice.