Multiplexing precoding scheme for STC-CPM with parametric phase discriminator IWM receiver
Sykora J, Schober R (2008)
Publication Type: Conference contribution
Publication year: 2008
Conference Proceedings Title: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Event location: Cannes
ISBN: 9781424426447
DOI: 10.1109/PIMRC.2008.4699738
Abstract
A constant envelope Continuous Phase Modulation (CPM) class of Multi-Channel (MC) modulations for multiantenna transmitters is considered. Each receive antenna receives a superposition of CPM waveforms. The useful signal at the receiver spans a curved space - the Information Waveform Manifold (IWM). Particularly it has the form of a cylinder on a cylinder for 2-component CPM signals. At the receiver, we use a nonlinear preprocessor consisting of a nonlinear projector on the IWM, optional processing on the curved space, and a decoding isomorphism. A particular form of the preprocessor, the 2-component IWM phase discriminator, is analyzed. We show that the discriminator can separate individual instantaneous phases of the component CPM modulations and therefore has multiplexing capabilities with respect to the individual transmitted components. Two parallel channels are created without the need for a time domain processing since the procedure fully relies on the curved space properties of the IWM, and thus can be combined with arbitrary outer space-time coding of MC-CPM. An information theoretic analysis of the multiplexing properties based on the mutual information regions is presented. The discriminator solution has a two-fold ambiguity. We show that the discriminator provides good separation of component phases conditioned on a perfect ambiguity resolution. We propose a transmit spatial-differential precoding scheme that allows the ambiguity resolution. © 2008 IEEE.
Authors with CRIS profile
Involved external institutions
Czech Technical University in Prague / České vysoké učení technické v Praze
Czech Republic (CZ)
University of British Columbia
Canada (CA)
Czech Republic (CZ)
University of British Columbia
Canada (CA)
How to cite
APA:
Sykora, J., & Schober, R. (2008). Multiplexing precoding scheme for STC-CPM with parametric phase discriminator IWM receiver. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Cannes, FR.
MLA:
Sykora, Jan, and Robert Schober. "Multiplexing precoding scheme for STC-CPM with parametric phase discriminator IWM receiver." Proceedings of the 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008, Cannes 2008.
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