Pace Time Modulation for Intra-Cardiac Communication

Although single-node leadless pacemakers eliminate several complications associated with subcutaneous pockets and leads, they have the significant limitation of only being able to perform single-chamber pacing. Multi-nodal pacing can outperform single-chamber pacing by providing a closer approximati...

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Bibliographic Details
Published in:IEEE communications letters 2022-10, Vol.26 (10), p.2385-2389
Main Authors: Hejri, Farrokh, Veletic, Mladen, Balasingham, Ilangko, Hoeher, Peter A.
Format: Article
Language:English
Subjects:
Atria
Biocompatibility
Biomedical communication
Heart
Heart beat
Heart rate
Modulation
Nodes
Pacemakers
pulse modulation
Receivers
Symbols
Synchronism
Transmitters
Wireless communications
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Summary:Although single-node leadless pacemakers eliminate several complications associated with subcutaneous pockets and leads, they have the significant limitation of only being able to perform single-chamber pacing. Multi-nodal pacing can outperform single-chamber pacing by providing a closer approximation of sinus rhythm but requires energy-efficient wireless communication to preserve synchrony. In this work, we propose a novel biocompatible communication concept wherein the pacemaker node located in the sinoatrial (SA) node stimulates the right atrium and simultaneously sends a synchronization message, encoded into the pacing time, to all other pacemaker nodes located at different sites in the heart. We refer to this concept as the Pace Time Modulation (PTM) method and assess its performance in terms of symbol error rate and achievable information rate. The analyses and numerical simulations indicate that PTM can be applicable in realistic scenarios, without deviating the heart rate from its normal range.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2022.3194268