Zobrazeno 1 - 10
of 1 096
pro vyhledávání: '"Half-duplex"'
Publikováno v:
Discrete and Continuous Models and Applied Computational Science, Vol 32, Iss 1, Pp 86-98 (2024)
The blockage of the propagation path is one of the major challenges preventing the deployment of fifth-generation New Radio systems in the millimeter-wave band. To address this issue, the Integrated Access and Backhaul technology has been proposed as
Externí odkaz:
https://doaj.org/article/8230a4bd02d6421ebca47e2311d27801
Publikováno v:
Alexandria Engineering Journal, Vol 91, Iss , Pp 139-151 (2024)
This paper examined uplink and downlink di-state (primary and secondary) situations to build the theoretical and practical realization of a bidirectional cooperative wireless cellular network. In the primary scenario, full-duplex (FD) base stations s
Externí odkaz:
https://doaj.org/article/4f5b8ea64a424646a663c0ed5cde1919
Publikováno v:
IEEE Access, Vol 12, Pp 152668-152683 (2024)
In this paper, we investigate a hybrid satellite-unmanned aerial vehicle (UAV) relay network (HSURN) with rate splitting multiple access (RSMA), where the terminal transmits a superposition of the common and private signals with different power level
Externí odkaz:
https://doaj.org/article/d55213161f44437aa36817dcaf4feef0
Autor:
Nikita Tafintsev, Dmitri Moltchanov, Wei Mao, Hosein Nikopour, Shu-Ping Yeh, Shilpa Talwar, Mikko Valkama, Sergey Andreev
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 5392-5407 (2024)
Integrated Access and Backhaul (IAB) technology promises to facilitate cost-effective deployments of 5G New Radio (NR) systems operating in both sub-6 GHz and millimeter-wave (mmWave) bands. As full-duplex wireless systems are in their infancy, initi
Externí odkaz:
https://doaj.org/article/33af44f2f12d4d3ab5123737df821263
Publikováno v:
IEEE Access, Vol 12, Pp 118565-118586 (2024)
Integrated Access and Backhaul (IAB) is expected to become a key part of the 5G and future cellular systems enabling cost-controlled network densification. IAB relies upon multi-hop relaying, which makes delay a critical factor, especially for the ha
Externí odkaz:
https://doaj.org/article/377ab0125b2f47eeb29e16714288ce8d
Publikováno v:
Automatika, Vol 64, Iss 4, Pp 1158-1170 (2023)
ABSTRACTBroadcasting in wireless channels causes security vulnerabilities since both the intended receiver and the eavesdropper may receive the information. Physical layer security (PLS) ensures the confidentiality of information transmitted wireless
Externí odkaz:
https://doaj.org/article/f97a8126ba864c86ad359b7984ccf6d8
Publikováno v:
Applied Sciences, Vol 14, Iss 16, p 7372 (2024)
RFID (Radio Frequency Identification), which transmits control data through electronic tags in a non-contact manner, provides a new approach for efficient and low-cost remote control of oil downhole tools. However, the interference of harsh downhole
Externí odkaz:
https://doaj.org/article/84b6745851f84c7aaac450d1cb9f69b7
Autor:
Hongqing Ding, Guangcan Chen, Zhixiong Ren, Lei Jing, Yanbo Li, Tianhai Chang, Yuanbing Cheng
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 4, Pp 1-5 (2023)
We propose and demonstrate a cost-effective half-duplex transceiver for Fiber-to-the-Room (FTTR) network by using a homemade uncooled and isolator-free distributed feedback (DFB) laser as both receiver (Rx) and transmitter (Tx). AlGaInAs multiple qua
Externí odkaz:
https://doaj.org/article/8a461ca5b9774df1b3b3efc5ee262b67
Publikováno v:
Digital Communications and Networks, Vol 8, Iss 5, Pp 853-863 (2022)
We propose a legal Unmanned Aerial Vehicle (UAV) surveillance system to perform passive surveillance or active jamming while in the presence of a suspicious relay or source, where a UAV works in half-duplex mode and the relay/source deploys artificia
Externí odkaz:
https://doaj.org/article/2cca4e27987d4ddebca8b27e387fcb42
Publikováno v:
Radioengineering, Vol 31, Iss 3, Pp 362-373 (2022)
The bit error rate (BER) performance of spatial modulation (SM) can be further improved by applying quasi-cyclic low-density parity-check (QC-LDPC) codes recommended in 5G to SM. It motivates us to propose a QC-LDPC coded SM (QC-LDPCC-SM) scheme, whe
Externí odkaz:
https://doaj.org/article/fedd2e7882e64866bc56bc5e832733e4