Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Weijia Lei"'
Autor:
Hongjiang Lei, Chen Zhu, Ki-Hong Park, Imran Shafique Ansari, Weijia Lei, Hong Tang, Kyeong Jin Kim
Publikováno v:
Digital Communications and Networks, Vol 10, Iss 5, Pp 1529-1541 (2024)
In this paper, we analyze the outage performance of Unmanned Aerial Vehicles (UAVs)-enabled downlink Non-Orthogonal Multiple Access (NOMA) communication systems with the Semi-Grant-Free (SGF) transmission scheme. A UAV provides coverage services for
Externí odkaz:
https://doaj.org/article/7e8110ca24ba4070976ee62f9d9a968e
Publikováno v:
Tongxin xuebao, Vol 43, Pp 117-126 (2022)
Intelligent reflecting surface (IRS) improves the physical layer security of the communication systems by adjusting the phases of the reflecting units.A scheme of physical layer security design based on alternative iteration was proposed for IRS-assi
Externí odkaz:
https://doaj.org/article/eaf9284b433243af91a13df9bfbf9dfa
Publikováno v:
Digital Communications and Networks, Vol 7, Iss 3, Pp 352-361 (2021)
We discuss the physical layer security scheme in the Full-Duplex (FD) MIMO point-to-point two-way communication system with residual self-interference, in which legitimate nodes send confidential information and null space Artificial Noise (AN) while
Externí odkaz:
https://doaj.org/article/124e195fd3f04fbfaa5cae0dce882d78
Publikováno v:
Tongxin xuebao, Vol 41, Pp 156-171 (2020)
The design of precoding matrices was studied in the multiple input multiple output (MIMO) full-duplex two-way security communication system where legitimate nodes transmit the confidential information accompanied by the artificial noise while receivi
Externí odkaz:
https://doaj.org/article/c044d82e110147569a26630d804f5c36
Autor:
Weijia LEI, Minghao DONG
Publikováno v:
Tongxin xuebao, Vol 40, Pp 98-107 (2019)
The optimization of the transmission rate and implementation of the simultaneous wireless information and power transfer in a relay system were studied.In a three-node two-hop system,the decode-and-forward protocol was employed by the relay node.One
Externí odkaz:
https://doaj.org/article/2d8f4aab14444e54a01878e0b25f4715
Autor:
Weijia Lei, Qin Li
Publikováno v:
IEEE Access, Vol 7, Pp 71335-71349 (2019)
This paper studies the power control in a two-hop decode-and-forward relay system over fading channel. The relay node is an energy harvesting node and is equipped with a data buffer and a rechargeable battery with finite capacity. Under the condition
Externí odkaz:
https://doaj.org/article/6ff7270add4a4c55ad22f821656a92d6
Publikováno v:
IEEE Transactions on Communications. 71:2074-2086
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5fbf648a03cc3f951f760fe1f1aecad
https://doi.org/10.1109/tcomm.2023.3240691
https://doi.org/10.1109/tcomm.2023.3240691
Publikováno v:
International Journal of Distributed Sensor Networks, Vol 15 (2019)
To maximize the long-term time-averaged secrecy rate of an energy harvesting wireless communication system, an online power control algorithm based on the Lyapunov optimization framework is proposed. The system is composed of a source node, a coopera
Externí odkaz:
https://doaj.org/article/dcb22a26f179489cad201d041e464a41
Autor:
Weijia, Lei, Shengnan, Chen
Publikováno v:
In The Journal of China Universities of Posts and Telecommunications October 2016 23(5):26-31
Autor:
Weijia Lei, Imran Shafique Ansari, Hongjiang Lei, Chen Zhu, Theodoros A. Tsiftsis, Ki-Hong Park
Publikováno v:
IEEE Internet of Things Journal. 9:5329-5343
In this paper, we study the secure communication performance of non-orthogonal multiple access (NOMA) communication systems with aerial eavesdroppers. Firstly, the ground-to-ground NOMA communications systems are considered wherein the near user is u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a928477e4fccaef87752b9bdb6f6d264
https://doi.org/10.1109/jiot.2021.3108002
https://doi.org/10.1109/jiot.2021.3108002