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The authors present multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) based Broadband Power Line Communication (BPLC) using antenna and fading diversity. They evaluate the proposed MIMO-OFDM system over multi-conductor power line channels, with or without cross-talk between the antenna paths. The proposed scheme employs Maximum Ratio Combining (MRC) that effectively combines both the multiple antenna diversity gain and the multipath fading diversity gain over 3- phase (2x2 MIMO, outdoor) power line channels. Simulation results prove that the proposed scheme improves the bit error rate performance over the existing schemes, irrespective of whether cross-talk exists.
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