Zobrazeno 1 - 10
of 214
pro vyhledávání: '"Jianxin Dai"'
Publikováno v:
IET Communications, Vol 18, Iss 4, Pp 322-331 (2024)
Abstract A transmission power minimization problem for a reconfigurable intelligent surface (RIS) aided non‐orthogonal multiple access (NOMA) network has been studied here, which has assumed the channel state information is imperfect. The channel e
Externí odkaz:
https://doaj.org/article/33c8ef23a4234280aef54447c212e64c
Autor:
Guijie Li, Kewei Xu, Jianbing Zheng, Xiaoli Fang, Yun-Fang Yang, Weiwei Lou, Qingshan Chu, Jianxin Dai, Qidong Chen, Yuning Yang, Yuan-Bin She
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-16 (2023)
Abstract An efficient one-pot strategy for the facile synthesis of double boron–oxygen-fused polycyclic aromatic hydrocarbons (dBO-PAHs) with high regioselectivity and efficient skeletal editing is developed. The boron–oxygen-fused rings exhibit
Externí odkaz:
https://doaj.org/article/7214d34849624d6f8da85698ce89add8
Publikováno v:
Diagnostics, Vol 14, Iss 13, p 1332 (2024)
Purpose: Type A aortic dissection (TAAD) is a life-threatening aortic disease. The tear involves the ascending aorta and progresses into the separation of the layers of the aortic wall and the occurrence of a false lumen. Accurate segmentation of TAA
Externí odkaz:
https://doaj.org/article/615082e84b7e4ce49a420d5d9c453a54
Publikováno v:
IET Communications, Vol 17, Iss 4, Pp 460-468 (2023)
Abstract This paper studies the beamforming design for an active reconfigurable intelligent surface (RIS) aided non‐orthogonal multiple access (NOMA) network. It aims to minimize the transmission power while satisfying the requirement of the qualit
Externí odkaz:
https://doaj.org/article/8b51198036af409f80c815cf2d301f16
Publikováno v:
IEEE Access, Vol 11, Pp 78111-78118 (2023)
A secrecy rate maximization problem for active reconfigurable intelligent surface (RIS) aided non-orthogonal multiple access networks has been studied in this paper. Assuming that the perfect channel state information is available, we aim to maximize
Externí odkaz:
https://doaj.org/article/03400b6ec28b417485544a658915a9ea
Publikováno v:
IET Communications, Vol 17, Iss 1, Pp 98-109 (2023)
Abstract This paper focuses on a reconfigurable intelligent surface (RIS)‐aided full‐duplex multi‐user massive multiple‐input multiple‐output system with transceiver hardware impairments (THWIs). Different from the existing works, the two
Externí odkaz:
https://doaj.org/article/0566a3c395c2408982cd093f326ec369
Publikováno v:
Frontiers in Psychology, Vol 13 (2022)
IntroductionWith the rapid development of China in recent decades, entrepreneurial scenarios are constantly changing, greatly promoting entrepreneurial practice. The characteristics of China’s entrepreneurial scene, such as institutional difference
Externí odkaz:
https://doaj.org/article/86ff94c701a14dff8c2417333ac2ef56
Publikováno v:
IEEE Access, Vol 7, Pp 24343-24353 (2019)
This paper investigates the uplink and downlink achievable rates of full-duplex (FD) massive multi-input-multi-output (MIMO) systems in which low-resolution analog-to-digital converters/digital-to-analog converters (ADCs/DACs) are employed and maximu
Externí odkaz:
https://doaj.org/article/e918e4d582bb4707b074dcca63334191
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2018, Iss 1, Pp 1-12 (2018)
Abstract We investigate the uplink and downlink achievable rates of full-duplex (FD) massive multi-input multi-output (MIMO) systems with low-resolution analog-digital converters/digital-to-analog converters (ADCs/DACs), where maximum ratio combining
Externí odkaz:
https://doaj.org/article/e35b6786795149908145539155d4b0ac
Publikováno v:
IEEE Access, Vol 6, Pp 5666-5677 (2018)
In cognitive radio networks, cooperative spectrum sensing (CSS) is generally adopted for improving spectrum sensing accuracy to increase spectrum utilization and avoid interference with the primary users. However, some malicious secondary users (SUs)
Externí odkaz:
https://doaj.org/article/78b29ae013034c0f8c3714a1df742aa7