On Coded and Interleaved Noncoherent Multiple Symbol Detected MPSK

The performance of multiple symbol noncoherent detection of MPSK combined with coding and interleaving is examined in terms of the cut-off rate bound. It is shown that, within this approach, inner modulation coding improves on standard DPSK when both are combined with an external error correcting code, such as the industry standard, K = 7 R = 1/2 convolutional code. Some modulation codes over BPSK and QPSK are examined and a reduced complexity decoder is presented. The results and conclusions are verified by some simulations.

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