Synchronization approaches and improvements for a low-complexity power line communication system

Article Number
8909724
Citation
IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids, SmartGridComm: 8909724 (2019-10-01)
Contribution to Conference
IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids, SmartGridComm 2019  
Publisher DOI
10.1109/SmartGridComm.2019.8909724
Scopus ID
2-s2.0-85076399642
This paper presents several improvements of the energy-pattern based sequence detection (EPSD) algorithm for FSK-based single-phase power line communication (PLC) systems, in terms of complexity, reliability and synchronization. A time synchronization is presented which fulfills the well known task of synchronizing transmitter and receiver, but also helps to avoid transmissions in periods of rough noise conditions. The synchronization method is based on a maximum-likelihood approach that makes use of the phase of the mains voltage. Further improvements concern the codes used for the trans-mitted sequences as well as the combination of the information within both FSK carrier-frequencies in terms of equal gain and maximum ratio combining. Additionally an approach for a low-complexity frame synchronization is presented.
Subjects
Fsk
Low-power
Plc
Wakeup receiver