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Multi-Branch Fractional Multi-Bit Differential Detection of Continuous Phase Modulation with Decision Feedback
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Communications and Network·Volume 03 (2011)·Pages 23–30·Published 25 February 2011·DOI10.4236/cn.2011.31004
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Abstract
Differential detection of continuous phase modulation suffers from significant intersymbol interference. To reduce bit error rate, multi-branch fractional multi-bit differential detection (MFMDD) with decision feed-back is proposed. By introducing decision feedback in multi-bit differential detected signals, severe inter-symbol interference can be removed. Simulation results show that the proposed structure can greatly im-proves the performance compared with MFMDD without decision feedback, and the performance of 9 FMDD is very near to the performance of the coherent detection.
KeywordsContinuous Phase ModulationDifferential DetectionFractional Multi-Bit Differential DetectionDecision Feedback
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