Physical Layer Network Coding for Bridge Wireless Monitoring

Asma Mejri (1) , Jean-Claude Belfiore (1) , Ghaya Rekaya-Ben Othman (1)

1 LTCI - Laboratoire Traitement et Communication de l'Information

Structural Health Monitoring of bridges has aroused the interest of many researchers on various disciplines. Our purpose in this paper is to make an overview on SHM of bridges from two different research areas: Civil and Communication Engineering. For the former part, we provide some insights into the objectives and the ways SHM of bridges is made. For the Communication Engineering side, we provide some background on the used technologies in SHM of bridges. We distinguish the wired and Wireless Sensor Networks (WSNs). We focus on communication limitations in WSNs, mainly the interference problem occurring when the sensors broadcast their measurements and resulting in performance degradation. In this paper we review basic tools existing in literature based on the Physical Layer Network Coding approaches. We focus on the Compute-and-Forward protocol known to provide significant gains. Our main contribution concerns the implementation of this protocol and discussion of its practical challenges.

Mots clés: Physical Layer Network Coding; Structural Health Monitoring

Domaines: Théorie de l'information [cs.IT]; Théorie de l'information et codage [math.IT]

Asma Mejri, Jean-Claude Belfiore, Ghaya Rekaya-Ben Othman. Physical Layer Network Coding for Bridge Wireless Monitoring. 6th International Conference on Bridge Maintenance, Safety and Management (IABMAS), Jul 2012, Stresa, Italy. pp.102. ⟨hal-00781440⟩