A spectrally efficient transmission scheme for half-duplex decode-and-forward relaying
2007 (English)In: GLOBECOM 2007: 2007 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, 2007, 1663-1667 p.Conference paper (Refereed)
We propose a spectrally efficient transmission scheme for the half-duplex relay channel. In the proposed scheme, the relay combines N detected r-dimensional symbols and generates M new r-dimensional symbols, where M < N, using a linear transformation. The proposed linear transformation preserves the signal energy, and it facilitates decoupled symbol detection at the receiver.
We also present an optimized design for the case of complex scalar modulation (r = 2) with N = 2 and M = 1. This design increases the spectral efficiency by 33% compared to conventional decode- or amplify-and-forward relaying.
Place, publisher, year, edition, pages
2007. 1663-1667 p.
, IEEE Global Telecommunications Conference (Globecom), ISSN 1930-529X
Communication channels (information theory), Optimization, Signal analysis, Signal receivers, Complex scalar modulation, Linear transformation, Signal energy
IdentifiersURN: urn:nbn:se:kth:diva-8306DOI: 10.1109/GLOCOM.2007.320ISI: 000257505701124ScopusID: 2-s2.0-39349083565ISBN: 978-1-4244-1042-2OAI: oai:DiVA.org:kth-8306DiVA: diva2:13591
IEEE Global Telecommunications Conference (GLOBECOM 07), Washington, DC, NOV 26-30, 2007
QC 20101118 Tidigare titel: A Spectrally Efficient Transmission Scheme for Half-Duplex DF Relaying2008-04-302008-04-302010-11-18Bibliographically approved