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Comparison of Narrow-Band OFDM PLC Solutions and I-UWB Modulation over Distribution

pubblicazioni - Memoria

Comparison of Narrow-Band OFDM PLC Solutions and I-UWB Modulation over Distribution

To support the requirements of smart grids (SGs) applications, telecommunication industries and standardization organizations have proposed to use narrow-band (NB) orthogonal frequency division multiplexing (OFDM) based solutions over power line communications (PLCs) networks. Among these solutions, the most important are the PoweRline Intelligent Metering Evolution (PRIME), the ERDF G3-PLC, and the G3-FCC. Impulsive-ultrawide band (I-UWB) is a broadband modulation technique which has recently been proposed for robust low rate command and control applications over MV and outdoor-low voltage (O-LV) channels. In this paper, we compare the performances of G3-PLC, PRIME, G3-FCC, and I-UWB solutions in terms of capacity and power consumption when transmission is over distribution networks. Through numerical results, we have found that in most cases, on equal transmitted power, I-UWB shows much higher capacity values than NB-OFDM based solutions. The capacity gains directly translate in power savings, and range extensions when we impose the target rate of I-UWB to be equal to the capacity of NB-OFDM based solutions. Therefore, I-UWB can be considered an alternative to more conventional NB OFDM solutions for SG applications.

 

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