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Emerging Tel. Tech."],"published-print":{"date-parts":[[2016,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Analogue joint source\u2010channel coding (JSCC) has been shown to approach the optimal distortion\u2010cost trade\u2010off when transmitting over additive white Gaussian noise channels. In this work, we consider analogue JSCC over frequency\u2010selective channels using orthogonal frequency division multiplexing (OFDM) modulation and multiple antennas at transmission and\/or reception, that is, using a multiple input multiple output(MIMO)\u2010OFDM system. Because of its high complexity, optimal Minimum Mean Square Error (MMSE) analogue JSCC decoding is infeasible in MIMO\u2010OFDM systems and a practical two\u2010stage decoding approach made up of an MMSE estimator followed by a maximum likelihood decoder is proposed instead. Three different alternatives for system optimisation are considered: non\u2010adaptive coding, adaptive coding and adaptive coding with precoding. We show that the three considered strategies approach the optimal distortion\u2010cost trade\u2010off, but the best performance is obtained with the adaptive coding scheme when precoding is utilised. 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