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1 Advances in Electronics and Telecommunications

1 2010

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Adaptive Coded Continuous-Phase Modulations for Frequency-Division Multiuser Systems

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Perotti A. , Remlein P. , Benedetto S.

2010

tom Vol. 1, no. 1

50--58

In this paper we study adaptive coded modulations for wireless channels. Nonlinearity due to the radio-frequency power amplifier is considered and continuous-phase modulations (CPM) are adopted in order to make the nonlinearity effects negligible. The structure and properties of CPM are reviewed in a semi-tutorial fashion and coded modulation schemes are proposed. Moreover, frequency-division multiplexing (FDM) multiuser systems employing coded CPM are considered. Modulation-coding schemes achieving increasing spectral efficiencies in a multiuser scenario with tight intercarrier frequency spacing are designed and their performance in terms of spectral efficiency and error rate is assessed.