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- W2138696566 abstract "A subspace beamforming method is presented that decomposes a MIMO channel into multiple pairs of subchannels. The pairing is done based on singular values such that similar channel capacity is obtained between different subchannel pairs. This new capacity balancing concept is key to achieving high performance with low complexity. We apply the subspace idea to geometric mean decomposition (GMD) and maximum likelihood (ML) detection. The proposed subspace GMD scheme requires only two layers of detection/decoding, regardless of the total number of subchannels, thus alleviating the latency issue associated with conventional GMD. We also show how the subspace concept makes the optimization of ML beamforming and ML detection itself feasible for any KtimesK MIMO system. Simulation results show that subspace beamforming performs nearly as well as optimum GMD performance, and to within only a few dB of the Shannon bound." @default.
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- W2138696566 date "2008-01-01" @default.
- W2138696566 modified "2023-09-27" @default.
- W2138696566 title "Subspace beamforming for near-capacity MIMO performance" @default.
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- W2138696566 doi "https://doi.org/10.1109/ita.2008.4601069" @default.
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