Alternate Distributed Beamforming for Decode-and-Forward Multi-Relay Systems Using Buffers

Zhou, Jiayu; Qiao, Deli

doi:10.1109/icnc47757.2020.9049754

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…This paper has been presented in part at the 2020 International Conference on Computing, Networking and Communications, Big Island, Hawaii, Mar. 2020 [33]. An earlier version of this work has been presented as Preprint according to the following link: https://arxiv.org/abs/2005.07699.…”

Section: Data Availabilitymentioning

confidence: 99%

Alternate Distributed Beamforming with Power Allocation for Decode-and-Forward Multirelay Systems Using Buffers

Zhou

Qiao

Qian

2022

Wireless Communications and Mobile Computing

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In this paper, a novel transmission policy referred as alternate distributed beamforming (ADB) for buffer-aided half-duplex (HD) multirelay systems is proposed, in which the relays are divided into two groups and activated alternately in their transmitter and receiver modes, with one group receiving the same information broadcast from the source while the other group simultaneously transmitting the common messages to the destination via distributed beamforming in each time slot. It is worth noting that the relays used for reception and transmission are determined without the instantaneous channel state information (CSI). Theoretical analysis of the achievable throughput of the proposed scheme in Rayleigh fading channels is provided, and the approximate closed-form expressions are derived for multiantenna relay scenario, with single-antenna relay scenario as a special case. Moreover, the asymptotic expressions for the maximum achievable throughput of the proposed scheme and corresponding optimal power allocation in the high- and low-SNR regimes are derived as well. Numerical results in accordance with theoretical analysis demonstrate that the proposed policy achieves a significant improvement in the maximum achievable throughput compared with benchmark schemes. It is shown that for the ADB scheme, the almost or exact symmetric relay grouping may achieve the best performance in the high-SNR regime. It is also shown that increasing the number of antennas equipped at each relay is better than increasing the number of relays equipped with a single antenna when the total number of antennas at the relays is fixed.

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Section: Data Availabilitymentioning

confidence: 99%

Alternate Distributed Beamforming with Power Allocation for Decode-and-Forward Multirelay Systems Using Buffers

Zhou

Qiao

Qian

2022

Wireless Communications and Mobile Computing

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Deep learning‐driven distributed communication systems for cluster online educational platform considering human–computer interaction

Zhou

2021

Int J Communication

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The wireless network environment has become increasingly complex, diverse, and dynamic. In recent years, the introduction of new concepts such as green networks and smart networks has diversified the optimization objectives of the spectrum resource management. Under this background, this paper proposes the novel deep learning-driven distributed communication systems for cluster online educational platform considering human-computer interaction. Before the modeling, the literature review and the state-of-the-art methodologies are introduced. For the framework design, first, the novel distributed communication system is designed considering the integration of the Q-learning under the deep neural network structure. Then, the cluster computing model is integrated for the system to enhance the robustness. Later, the human-computer interaction together with the movement tracking models is proposed to finalize the interactive online platform. The simulation results show that the proposed algorithm can extract the information accurately, and transmission efficiency is guaranteed. Compared with the latest platforms, the proposed outperforms from the aspects of accuracy and efficiency.

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Alternate Distributed Beamforming for Decode-and-Forward Multi-Relay Systems Using Buffers

Cited by 2 publications

References 39 publications

Alternate Distributed Beamforming with Power Allocation for Decode-and-Forward Multirelay Systems Using Buffers

Alternate Distributed Beamforming with Power Allocation for Decode-and-Forward Multirelay Systems Using Buffers

Deep learning‐driven distributed communication systems for cluster online educational platform considering human–computer interaction

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