In the peer-to-peer (P2P) live streaming systems, a single stream is decomposed into multiple sub-streams. For the participating nodes, data blocks of different sub-streams are stored in different sub-buffers for sync...
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We consider the problem of pilot design for sparse multipath channel estimation in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system in this *** order to reconstruct MIMO s...
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ISBN:
(纸本)9781467321006
We consider the problem of pilot design for sparse multipath channel estimation in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system in this *** order to reconstruct MIMO sparse channel,the prevalent compressed sensing (CS) theory is *** to random pilot construction,a deterministic pilot de- sign method is exploited to form the measurement matrix by deterministically extracting some rows of Fourier matrix that satisfies Restricted Isometry Property (RIP).Two families of continuous functions,namely f1 -SL0 and f 2-SL0,are investi- gated in this paper to approximate A 0norm for MIMO sparse channel *** results suggest that the de- terministic pilot design scheme performs as well as the random one at both low and high signal noise ratio (SNR).Moreover,f1 - SL0 and f 2-SL0 outperform A 1-dantzig algorithm with faster running time and better anti-noisy performance.
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