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Design of serially concatenated continuous phase modulation with symbol-wise interleaving

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2 Author(s)
Jun Ning ; School of Electrical Engineering and Computer Science, University of Newcastle, Callaghan, NSW 2308 Australia. ; Minyue Fu

In this letter we consider serially concatenated continuous phase modulation (SCCPM) schemes with symbolwise interleaving and an additional intra-symbol interleaving. We use extrinsic information transfer (EXIT) chart to optimize the outer code and intra-symbol interleaver. We show that, for various continuous phase modulation (CPM) parameters, the outer code with memory 2 may not always be the best choice. For CPM with modulation index h = 1/2, considerable improvements can be achieved by moderately increasing the outer code memory.

Published in:

IEEE Communications Letters  (Volume:13 ,  Issue: 10 )