Performance analysis of sampling-based turbo coded NCQFSK for image data transmission
作者： Pooja Raorane , Mona Nasseri , Mansoor Alam , Junghuwan Kim
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摘要: In this paper, we propose the efficient turbo code metric calculation methodology for noncoherent Quaternary Frequency Shift Keying (NCQFSK) which is suitable sampling--based computer simulation. its branch coded NCQFSK under AWGN, four decision statistics having either Rician or Rayleigh probability density functions must be accounted in decoding process. regard, paper clarifies mathematical details of utilizing demodulator outputs so that sampling-based can realized. Results BER performances using named waveform are shown rates 1/3, 1/2 and 2/3 AWGN a comparative assessment along with convolutional presented to check validity proposed procedures. These results further extended include implementation RS--turbo concatenated scheme towards practical use minimal number iteration. Finally applied image data (64x 64 pixels Gray scale) transmission effectiveness multimedia transmission.
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