2020
DOI: 10.1109/tvt.2020.3005402
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Deep Denoising Neural Network Assisted Compressive Channel Estimation for mmWave Intelligent Reflecting Surfaces

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Cited by 274 publications
(138 citation statements)
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“…An alternative approach to mmWave channel estimation is to adopt the compressed sensing (CS), which can be leveraged to effectively estimate mmWave massive MIMO channels [14]- [16]. More recently, CS techniques combine with deep denoising neural network has been advocated for IRS-assisted mmWave channel estimation that substantiality reduce the pilot overhead [17]. These CS-based approaches exploit the the limited scattering characteristics of mmWave propagation to form a sparse channel recovery problem [18], [19].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…An alternative approach to mmWave channel estimation is to adopt the compressed sensing (CS), which can be leveraged to effectively estimate mmWave massive MIMO channels [14]- [16]. More recently, CS techniques combine with deep denoising neural network has been advocated for IRS-assisted mmWave channel estimation that substantiality reduce the pilot overhead [17]. These CS-based approaches exploit the the limited scattering characteristics of mmWave propagation to form a sparse channel recovery problem [18], [19].…”
Section: Introductionmentioning
confidence: 99%
“…In particular, as the development of urbanization, the line-of-sight (LoS) link is blocked by more and more high-rise buildings emerge in dense down town. On the other hand, the study in [15], [17], [24] adapts CS-based channel estimation to reliably estimate and feed back the CSI, which achieves accurate CSI acquisition. These prior works are restricted to conventional single objective design, which yield to the fixed solution path in the optimization process and leads to the suboptimal sparse solution by fixed regularization parameter.…”
Section: Introductionmentioning
confidence: 99%
“…The sparsity of channels in a transformdomain is a crucial feature, which motivates the employment of compressive sensing approaches [30]. Recently, this feature has been exploited to CNN-based CE [31] and channel state information feedback [32].…”
Section: Introductionmentioning
confidence: 99%
“…At the time of writing, machine learning is attracting increasing attention in wireless communications [18][19][20][21]. In particular, by employing neural networks (NNs), nearoptimal low-complexity channel estimation and/or data detection can be achieved for different physical-layer communication schemes, relying either on a data-driven approach [22,23], where no mathematical model is required, or on a model-driven basis [24][25][26], which exploits the benefits of both well-established mathematical physical-layer communication models and of NNs.…”
Section: Introductionmentioning
confidence: 99%