A Spectrally Efficient Transmission Scheme for Half-Duplex Decode-and-Forward Relaying

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

• Type: Conference
• Year: 2007
• Where: GLOBECOM
• Authors: Majid Nasiri Khormuji, Erik G. Larsson
• Keywords: Communications, GLOBECOM 2007, Half-duplex Relay Channel, Linear Transformation, R-dimensional Symbols