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- W2090177277 abstract "We consider the down-link of multi-pair two-way decode-and-forward (DaF) relay channel with multiple antennas at all the nodes. We propose schemes composed of relay pre-coder and user receive beam-formers to support 2M degrees of freedom when M antennas are employed at the relay. A channel aligning technique, where the channel vectors of a pair are forced to be aligned, is introduced so that we can use, at the relay, the well-known pre-coder like zero forcing (ZF) or the regularized channel inversion (RI) from the cellular down-link channels. Alternation based optimization of the pre-coder and the beam-formers searches the channel aligned vector space to further enhance the performance of the scheme in the low and mid SNR range." @default.
- W2090177277 created "2016-06-24" @default.
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- W2090177277 date "2012-10-01" @default.
- W2090177277 modified "2023-09-27" @default.
- W2090177277 title "Channel Aligned Beamforming in Two-Way Multi-Pair Decode-and-Forward Relay Down-Link Channels" @default.
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- W2090177277 doi "https://doi.org/10.1109/wcl.2012.070312.120343" @default.
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