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Performance analysis and improved detection for DMSK with nonredundant error correction

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1 Author(s)
Weining, H. ; Control Instrum. Pty. Ltd., Kensington, NSW, Australia

The author presents a method to analyse theoretically the performance of the narrow band DMSK with nonredundant error correction. The effect of the performance of the demodulation channels, e.g. the data channel and the parity channel, to the overall system performance is clarified, based on which an improved detection scheme is proposed which uses the two-bit DMSK as the data channel and the four-bit DMSK as the parity channel, and which is shown to be capable of achieving approximately 1.0 dB improvement in E b/N performance, as compared with the conventional DMSK with nonredundant error correction, without increasing the system complexity. Finally, computer simulation is performed both to verify the theoretical result and to evaluate the effect of the IF hard-limiter to the overall error-rate performance.<>

Published in:

Communications, Speech and Vision, IEE Proceedings I  (Volume:137 ,  Issue: 6 )

Date of Publication:

Dec. 1990

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