Linear precoding for space-time coded systems with known fading correlations

By Hemanth Sampath, Arogyaswami Paulraj. IEEE Communications Letters, 2002

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Complex-Valued Matrix Differentiation: Techniques and Key Results (2007, background): “, in the capacity of wireless multiple-input multiple-output (MIMO) communication systems [19], in an upper bound for the pair-wise error probability [18], [27], and for the exact”
Limited feedback unitary precoding for spatial multiplexing systems (2005, background): “Precoding has been proposed based on knowledge of the full channel state information at the transmitter [3], [4], firstorder statistics [5], [6], or second-order statistics of the channel [5], [7]–[11].”
A fourth-generation MIMO-OFDM broadband wireless system: design, performance, and field trial results (2002, background): “Of particular interest are space-time codes that require no feedback [7], and linear precoding based on channel statistics that requires minimal feedback [8].”
Variable-phase-shift-based RF-baseband codesign for MIMO antenna selection (2005, background): “for antenna selection can also be viewed as a special case of linear precoder designs [29], [30] or, more generally, precoder-decoder joint designs; see, e.”