This contribution extends the recently proposed Pseudo-Random-Postfix OFDM (PRP OFDM) transceiver to the Multiple Transmit Multiple Receive (MTMR) antennæ context. In this paper a new generic MTMR modulator is proposed that grants a low complexity semi-blind identification of all channels between any transmit and receive antenna based on order-one statistics. A new channel tracking strategy is detailed based on a Moving Average (MA) Doppler modeling that preserves the Jakes channel coefficients correlation properties. Moreover two transceiver architectures are presented with an Alamouti based Space-Time (ST) block code: equalization schemes with or without postfix interference cancellation and related modulators. Performance is illustrated by simulations in the context of the 5.2GHz OFDM WLAN IEEE802.11a standard.
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