A receiver detects and recovers data from Orthogonal Frequency Division Multiplexed (OFDM) symbols, which are transmitted as first and second versions to form a multiple input multiple output (MISO) system and carry pairs of data symbols encoded to form Alamouti cells. A channel estimator and corrector is arranged to form an estimate of the data symbols by generating an estimate of first and second channels. A receiver includes a channel estimator and corrector comprising a pilot data extractor for extracting the pilot data from the OFDM symbols, a frequency dimension interpolator for interpolating between the pilot data received from each of the OFDM symbols in the frequency domain to form sum pilot data and difference pilot data, a sum and difference decoder for combining the sum and difference pilot data to form for each data symbol of the Alamouti pairs an estimate of a sample of the first channel and an estimate of the sample of the second channel, and an Alamouti decoder. The Alamouti decoder receives the data bearing sub-carriers from the OFDM symbols and estimates the data symbols.