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Space-Time Block Codes with Rate ‡ 1 for Power Line Channels

By Carlos L. Giovaneli, Paddy Farrell and Bahram Honary


Abstract-- In this paper, the utilisation of space-time block codes (STBC) for high-speed communications over power line channels (PLC) affected by quasi-static flat Rayleigh fading and additive man-made asynchronous impulsive noise is presented. Although the diversity order is severely reduced in a 3-phase PLC environment with respect to wireless MIMO channels, our simulation results for a rate-1 real orthogonal STBC scheme demonstrate significant gains over an uncoded system operating with the same diversity advantage. In addition, taking advantage of the spatial orthogonality provided by the power line channel, a rate-3/2 real non-orthogonal space-time block code with reduced diversity order is constructed. It is shown that using the proposed high-rate code in a power line communication system yields good performance with very high spectral efficiency. I

Year: 2013
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