Robust Digital Receiver for Frequency Redundant Digital Communications Over Power Lines (CROSBI ID 473655)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Slišković, Maja
engleski
Robust Digital Receiver for Frequency Redundant Digital Communications Over Power Lines
Low voltage electrical power distribution networks represent an attractive medium for digital communications. A modified frequency hopping spread spectrum modulation scheme has been reported as an efficient method to overcome high interference level and time-variant and frequency-selective attenuation on power lines. In spread spectrum systems, the cost-effective solution of synchronisation problem is of decisive importance. Fluctuations of power line frequency, asymmetrical loading on three-phase networks and propagation delay along the cable, limit the data rate and seriously degrade performance of the systems which use zero crossings of the mains voltage as a synchronisation reference. In this paper we propose a digital receiver that derives timing information from the received signal, and therefore, it is not sensitive to the mentioned effects. The receiver design is based on sliding DFT calculation. To overcome time-variant attenuation, an adaptive algorithm is used.
power line communications; synchronization; DFT
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Podaci o prilogu
457-460-x.
1999.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 6th IEEE International Conference on Electronics, Circuits and Systems
Pafos: Institute of Electrical and Electronics Engineers (IEEE)
Podaci o skupu
6th IEEE International Conference on Electronics, Circuits and Systems
poster
01.01.1999-01.01.1999
Pafos, Cipar