Adaptive coded CPM

In this paper we consider multiuser communication systems in which coded continuous-phase modulation (CPM) is used. Users share the same spectrum through a frequency-division multiple access (FDMA) scheme in which a tight intercarrier frequency spacing is used in order to achieve a high spectral efficiency. As a consequence, each user link experiences intercarrier interference (ICI). We propose a new iterative method for inter-carrier interference (ICI) cancellation and exploit it to design adaptive multiuser frequency-multiplexed CPM systems that achieve a high spectral efficiency.

[1]  Piotr Remlein,et al.  Spectrally Efficient Multiuser Continuous-Phase Modulation Systems , 2010, 2010 IEEE International Conference on Communications.

[2]  S. Dolinar,et al.  Weight distributions for turbo codes using random and nonrandom permutations , 1995 .

[3]  Gary E. Ford,et al.  Optimum and reduced complexity multiuser detectors for asynchronous CPM signaling , 2006, IEEE Transactions on Wireless Communications.

[4]  Sergio Benedetto,et al.  Capacity-Achieving CPM Schemes , 2008, IEEE Transactions on Information Theory.

[5]  Pär Moqvist.  Multiuser Serially Concatenated Continuous Phase Modulation , 2002 .

[6]  Dariush Divsalar,et al.  Soft-input soft-output modules for the construction and distributed iterative decoding of code networks , 1998, Eur. Trans. Telecommun..

[7]  G. Montorsi,et al.  A Pragmatic Approach to Coded Continuous-Phase Modulation , 2007, 2007 Information Theory and Applications Workshop.

[8]  Tor Aulin,et al.  Multiuser detection for continuous phase modulation over Rayleigh fading channels , 2005, IEEE Communications Letters.

[9]  Sergio Benedetto,et al.  Optimization of CPM Pragmatic Capacity , 2007, IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference.

[10]  Giulio Colavolpe,et al.  A novel graph-based soft interference cancellation algorithm for FDM-CPM satellite systems , 2009, 2009 IEEE International Symposium on Information Theory.

[11]  Dario Fertonani,et al.  Spectrally-efficient continuous phase modulations , 2009, IEEE Transactions on Wireless Communications.

[12]  Tor Aulin,et al.  Serially concatenated continuous phase modulation with iterative decoding , 2001, IEEE Trans. Commun..

[13]  Bixio Rimoldi,et al.  A decomposition approach to CPM , 1988, IEEE Trans. Inf. Theory.

[14]  Tor Aulin,et al.  Digital Phase Modulation , 1986, Applications of Communications Theory.