Nyström Method-Based Hybrid Precoding for mmWave Full-Duplex Integrated Access and Backhaul Systems

Zhang, Junkai; Garg, Navneet; Holm, Mark; Ratnarajah, Tharmalingam

doi:10.1109/wcnc49053.2021.9417423

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…For simplicity and to coincide with Eqn. ( 6), we set ω = 0 in this work 3 . Let δ max and R min be the maximal phase error and the distance between the reference point and the closest scatter, respectively, the maximal relative distance is given by…”

Section: B Channel Modelmentioning

confidence: 99%

“…Recently, FD has brought new opportunities for a variety of applications, e.g., wireless power transfer [1], device-to-device systems [2], and integrated access and backhaul [3]. Despite the fact that FD offers a substantial advantage over half-duplex (HD), it is prone to self-interference (SI) due to the simultaneous transmission and reception of the transceiver (TRX).…”

Section: Introductionmentioning

confidence: 99%

“…Till now, SIC has been developed from different levels. Taken as a whole, SI can be suppressed by passive SIC approaches [4], [5], analog/digital circuit design [6], [7], and beamforming [3], [8]- [13]. First, passive SIC approaches suppress SI in antenna-/propagation-domain, such as antenna isolation.…”

Section: Introductionmentioning

confidence: 99%

“…In [12], [13], hybrid beamforming with iterative optimization was designed to minimize the SI power and improve the SE. In [3], hybrid beamforming with the Nyström method for cost-effective lowrank approximation was proposed for integrated access and backhaul with FD systems.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fast Compressive Channel Estimation for MmWave MIMO Hybrid Beamforming Systems

Yang

Xie

Wang

et al. 2022

2022 IEEE/CIC International Conference on Communications in China (ICCC)

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Millimeter wave (mmWave) full-duplex (FD) is a promising technique for improving capacity by maximizing the utilization of both time and the rich mmWave frequency resources. Still, it has restrictions due to FD self-interference (SI) and mmWave's limited coverage. Therefore, this study dives into FD mmWave MIMO with the assistance of reconfigurable intelligent surfaces (RIS) for capacity improvement. First, we demonstrate the angular-domain reciprocity of FD antenna arrays under the far-field planar wavefront assumption. Accordingly, a strategy for joint downlink-uplink (DL-UL) channel estimation is presented. For estimating the SI channel, the direct channel, and the cascaded channel, the Khatri-Rao product-based compressive sensing (KR-CS), distributed CS (D-CS), and two-stage multiple measurement vector-based D-CS (M-D-CS) frameworks are proposed, respectively. Additionally, we propose a passive beamforming optimization solution based on the angulardomain cascaded channel. With hybrid beamforming architectures, a novel hybrid weighted minimum mean squared error method for SI cancellation (H-WMMSE-SIC) is proposed. Simulations have revealed that joint DL-UL processing significantly improves estimation performance in comparison to separate DL/UL channel estimation. Particularly, when the interference-to-noise ratio is less than 35 dB, our proposed H-WMMSE-SIC offers spectral efficiency performance comparable to fully-digital WMMSE-SIC. Finally, the computational complexity is analyzed for our proposed methods.

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Section: B Channel Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fast Compressive Channel Estimation for MmWave MIMO Hybrid Beamforming Systems

Yang

Xie

Wang

et al. 2022

2022 IEEE/CIC International Conference on Communications in China (ICCC)

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Reconfigurable Intelligent Surface-Aided Full-Duplex mmWave MIMO: Channel Estimation, Passive and Hybrid Beamforming

Yang,

Lyu,

Xanthos

et al. 2024

IEEE Trans. Wireless Commun.

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Assessing Latency of Packet Delivery in the 5G 3GPP Integrated Access and Backhaul Architecture with Half-Duplex Constraints

Polyakov

Platonova

2022

Future Internet

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Integrated Access and Backhaul (IAB) is an enabling technology for efficient 5G millimeter wave (mmWave) New Radio (NR) deployment. The key feature of IAB is multi-hop wireless backhauling, allowing utilizing relaying IAB-nodes to provide cost-efficient access network densification and alleviate the problem of blockages. One of the critical performance measures in such systems is the latency of packet delivery over the multi-hop paths. The paper aims at assessing the impact of multi-hop transmission on the end-to-end delay in an IAB radio access network, taking into account the half-duplex constraint. We build a detailed queuing theory model for latency assessment in time-division-multiplexing (TDM)-based IAB deployments and evaluate the delay due to queuing in the network nodes for several cell topologies and under different time allocation strategies between access and backhaul. The paper considers a practical Manhattan-style urban deployment, which is characteristically impaired by the blockage of buildings. The numerical results show that balancing the access and backhaul micro phases is crucial for reducing the end-to-end packet delay, at least in the uplink, while increasing the number of network hops yields a linear increase in the total packet delay for both the uplink and downlink. The numerical results were obtained via simulation using the open-source software OMNeT++.

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Nyström Method-Based Hybrid Precoding for mmWave Full-Duplex Integrated Access and Backhaul Systems

Cited by 3 publications

References 10 publications

Fast Compressive Channel Estimation for MmWave MIMO Hybrid Beamforming Systems

Fast Compressive Channel Estimation for MmWave MIMO Hybrid Beamforming Systems

Reconfigurable Intelligent Surface-Aided Full-Duplex mmWave MIMO: Channel Estimation, Passive and Hybrid Beamforming

Assessing Latency of Packet Delivery in the 5G 3GPP Integrated Access and Backhaul Architecture with Half-Duplex Constraints

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