The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)
- Volume 21 Issue 10
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- Pages.2660-2669
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- 1996
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- 1226-4717(pISSN)
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- 2287-3880(eISSN)
Multiple-symbol Nonlinear Continuous Phase Frequency Shift Keying
다중 심볼 비선형 연속 위상 주파수 천이 변조
Abstract
In this paper, it is called nonlinear-symbol CPFSK(NCPFSK) which is modulated by the nonlinear function of information carrying phase function within all symbol interval produce time invariant trellis structure. In general, the bit error probability performance of CPFSK modultion scheme within given signal constellation is determined from the number of memory elementsof continuous phase encoder, i.e. number of state. In this paper the number of state of analyticall designed NCPFSK is time invariant. And the nonlinear symbol mapping function of the proposed moudlation produces the nonlinear symbol andthe phase state of the modulation for updating the phase function of NCPFSK. It si shown in this paper nonlinear symbol CPFSK with multiple TCM to make further improvements in d
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