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Quadrature Amplitude Modulation (QAM) is an important modulation scheme with many practical applications, including current and future wireless technologies. The performance of a mobile communication system can be improved by using a doubly iterative decoding scheme for space-time turbo codes with a large number of transmit and receive antennas, where the decoder uses preliminary soft values of the...
The performances of a low complexity doubly iterative decoder are analyzed for space-time turbo codes on a quasi-static fading channel. In order to improve them, here is used a quadratic permutation polynomial interleaver with the best Ω' metric (Ω'-QPP) and the obtained frame error rate (FER) and bit error rate (BER) performances are compared to those of random interleavers. To reduce the spatial...
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