The document discusses the feasibility of implementing a smart grid in Papua New Guinea using broadband powerline communications. It notes that the existing power grid infrastructure is aging and deteriorating, reducing reliability and efficiency. A smart grid could help address issues like blackouts and lack of automatic fault detection. It presents simulations of digital modulation techniques over powerline channels to evaluate techniques like OFDM and spread spectrum modulation for transmitting data. Bit error rate, signal-to-noise ratio, and other metrics are used to analyze performance over the powerline medium and determine the viability of powerline communications for a smart grid network.