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- W2104277441 abstract "We propose efficient algorithms for the extended Vertical Bell Labs Layered Space-Time architecture (V-BLAST) with selective per-antenna rate control (S-PARC). Instead of computing SNIRs from nulling vectors, we compute SNIRs from diagonal entries in the estimation error covariance matrix P, which are obtained from entries in F, i.e. the triangular squareroot of P. Then the square-root V-BLAST algorithm is applied, to compute F for an antenna subset from F for another subset. Moreover, when computing F, we can reuse intermediate results to further reduce the computational complexity dramatically. Assume M transmit/receive antennas. The proposed algorithm for the S-PARC scheme minimizing total transmit power has the speedup of 0.14M + 1.82, with respect to the corresponding SPARC algorithm computing SNIRs from nulling vectors, while the proposed algorithm for the S-PARC scheme maximizing total information rate has the speedup of (M + 58)/24." @default.
- W2104277441 created "2016-06-24" @default.
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- W2104277441 date "2010-01-01" @default.
- W2104277441 modified "2023-10-18" @default.
- W2104277441 title "Efficient Square-Root Algorithms for the Extended V-BLAST with Selective Per-Antenna Rate Control" @default.
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- W2104277441 doi "https://doi.org/10.1109/vetecs.2010.5493721" @default.
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