A Comparison of Physical Layers for Low Power Wide Area Networks

Yoann Roth (1) , Jean-Baptiste Doré (1) , Laurent Ros (2) , Vincent Berg (1)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 GIPSA-CICS - GIPSA - Communication Information and Complex Systems

In Low Power Wide Area networks, terminals are expected to be low cost, low power and able to achieve successful communication at long range. Communication should be low rate compared to cellular mobile networks. Most of the current technologies dedicated to Machine-to-Machine communication rely on the use of a spreading factor to achieve low levels of sensitivity. To contain power consumption at the terminal side, the cost of complexity should be paid by the receiving side. We propose to use turbo processing schemes as potential physical layers. We compare these schemes to a standard and an industrial solution, and show that a significant gain in sensitivity can be achieved, and very energy efficient scheme can be designed by mixing turbo processing and orthogonal modulation concepts.

Mots clés: Machine-to-Machine; Low SNR; Turbo Code; Low Rate; Low Power Wide Area LPWA; Internet of Things; PHY- layer; FSK

Domaines: Traitement du signal et de l'image [eess.SP]

Yoann Roth, Jean-Baptiste Doré, Laurent Ros, Vincent Berg. A Comparison of Physical Layers for Low Power Wide Area Networks. CROWNCOM 2016 - 11th EAI International Conference on Cognitive Radio Oriented Wireless Networks, May 2016, Grenoble, France. pp.261 - 272, ⟨10.1007/978-3-319-40352-6_21⟩. ⟨hal-01416911⟩