EFFECTS OF PHASE AND AMPLITUDE ERRORS ON QAM SYSTEMS WITH ERROR-CONTROL CODING AND SOFT DECISION DECODING
作者： Jason D. Ellis
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摘要: Demodulation of M-ary quadrature amplitude modulation (M-QAM) requires the receiver to estimate phase and received signal. The demodulator performance is sensitive errors in these estimates, sensitivity increases as M increases. We examine effects on QAM communication systems with error-control coding soft-decision decoding. A mathematical analysis presented for two decoding metrics. Performance comparisons are given 16-QAM 64-QAM errorcontrol techniques
参考文章(4)
Michael B. Pursley, Introduction to Digital Communications ,(2004)
M. Simon, J. Smith, Carrier Synchronization and Detection of QASK Signal Sets IEEE Transactions on Communications. ,vol. 22, pp. 98- 106 ,(1974) , 10.1109/TCOM.1974.1092170
W.G. Phoel, J.A. Flursley, M.B. Pursley, J.S. Skinner, Frequency-hop spread spectrum with quadrature amplitude modulation and error-control coding military communications conference. ,vol. 2, pp. 913- 919 ,(2004) , 10.1109/MILCOM.2004.1494947
Marvin Simon, Digital communication techniques ,(1994)