| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for jointly optimizing network coding, channel coding, and signal constellations in non-coherent wireless MIMO wireless relay networks when transceivers cannot obtain any knowledge of channel state information due to high-speed mobility of the transceivers themselves. <P>SOLUTION: In the relay networks, two terminals simultaneously transmit data to an intermediate relaying transceiver, and the intermediate relaying transceiver transmits mixed data using physical-layer network coding to both terminals. The embodiments of this invention exploit different blind space-time trellis-coded modulations for each user, whose codebook is jointly generated over a Grassmannian manifold. The method is provided by exponential mapping with affine-lattice convolution for joint optimization of channel coding, modulations, and network coding. The method is designed for fast fading channels with and without interleaving, and significantly improves performance in non-coherent bidirectional relaying MIMO networks. <P>COPYRIGHT: (C)2012,JPO&INPIT |
