Time-reversal for EMC improvement in powerline communications

Rehan Hashmat (1) , Pascal Pagani (1) , Ahmed Zeddam (1) , Thierry Chonavel (2, 3)

1 Orange Labs [Lannion]
2 Lab-STICC_TB_CID_TOMS
3 SC - Département Signal et Communications

Power Line Communication (PLC) is a technique used to deliver information over the electrical networks. The capacity and performance of PLC has evolved, over the past few decades, from very low bit rate power grid telemetry applications to inhome broadband internet services. However, there are serious electromagnetic compatibility (EMC) issues between PLC systems and radio broadcasters. Due to their dispersive nature, the PLC channels offer a rich scattering medium to a signal. Time-reversal (TR) is a technique which exploits scattering to obtain two major advantages: an improved signal to noise ratio (SNR) at the receiver, and reduced radio pollution to improve the EMC scenario.

Mots clés: Electromagnetic compatibility; Power line communication

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

Rehan Hashmat, Pascal Pagani, Ahmed Zeddam, Thierry Chonavel. Time-reversal for EMC improvement in powerline communications. 15ème colloque international et exposition sur la compatibilité électromagnétique, Apr 2010, Limoges, France. ⟨hal-00559213⟩