Sparse channel estimation in millimeter wave communications
Inthispaper,channelestimationinmillimeterwave(mmWave)communicationsystemsisconsidered.IncontrasttoprevailingmmWavechannelestimationmethodsexploitingthesparsitynatureofthechannel,wemoveonestepfurtherbyexploitingthejointAoD-AoAangularspread.Byformulatingthechannelestimationasablock-sparse
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