Serially Concatenated Coded M-ary Continuous Phase Modulation with Bit- Interleaver
نویسندگان
چکیده
This letter investigates a serially concatenated convolutional coded M-ary continuous phase modulation (CPM). Using the decomposition model of a CPM system, the soft-input-soft-output detectors for M-ary CPM is investigated in detail. Based on these, the performance of bit-interleaved coded-modulation (BICM) schemes is studied. Simulation results show that due to the presence of the conversion between symbol and bit likelihoods, so to improve the BER performance by the iterative scheme is no longer the best choice. In the case of the short information frame and low signal-to-noise ratio region, the coded modulation system based M-ary CPM can achieve better performance than coded M-ary QAM system with the same spectral efficiency. The proposed system is bandwidthand power-efficient, and moreover it is able to against burst errors effectively.
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