Zobrazeno 1 - 10
of 12 617
pro vyhledávání: '"spectrum sensing"'
Publikováno v:
IET Communications, Vol 18, Iss 18, Pp 1220-1230 (2024)
Abstract The wireless Internet of Things (IoT) is widely used for data transmission in power systems. Wireless communication is an important part of the IoT. The existing modulation classification algorithms have low classification accuracy when faci
Externí odkaz:
https://doaj.org/article/cb669d9cda1a4212bb682ba311c265e9
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-22 (2024)
Abstract Compressive sensing (CS) has been widely used to sense the wideband spectrum with fewer measurements by taking advantage of radio spectrum underutilization. As new smart devices, such as IoT devices, smart home devices, and wearables, use ba
Externí odkaz:
https://doaj.org/article/3784f2ee82084001ab33399f9d6cf5f0
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-17 (2024)
Abstract In the realm of green communications, the focus is on achieving high spectrum efficiency and low energy consumption. This paper addresses the crucial goal of reducing energy usage in green cognitive radio networks (CRNs) during communication
Externí odkaz:
https://doaj.org/article/50758b5342f04a14bae04dcc28dcaafb
Publikováno v:
Signals, Vol 5, Iss 3, Pp 438-459 (2024)
This paper addresses the problem of noncooperative spectrum sensing in very low signal-to-noise ratio (SNR) conditions. In our approach, detecting an unoccupied bandwidth consists of detecting the presence or absence of a communication signal on this
Externí odkaz:
https://doaj.org/article/c1382c8847314a348b8bb12d66041ccb
Publikováno v:
Dianxin kexue, Vol 40, Pp 100-113 (2024)
Cooperative spectrum sensing is regarded as the foundation and a key stage of cognitive radio networks. The node allocation strategy during the spectrum detection process was directly determined by the results of joint spectrum sensing. Various metho
Externí odkaz:
https://doaj.org/article/4f1fdfdb816b43d98648e4adbc9ddabe
Publikováno v:
ICT Express, Vol 10, Iss 3, Pp 472-478 (2024)
In CRNs, it is crucial to develop an efficient and reliable spectrum detector that consistently provides accurate information about the channel state. In this work, we investigate a CSS in a fully-distributed environment where all secondary users (SU
Externí odkaz:
https://doaj.org/article/6de8f73506c04ee6873c90ed9030213d
Autor:
E. Vargil Vijay, K. Aparna
Publikováno v:
e-Prime: Advances in Electrical Engineering, Electronics and Energy, Vol 9, Iss , Pp 100659- (2024)
Spectrum sensing is a vital element of cognitive radio networks. It's the basis for unlicensed users to access underutilized bands without disturbing licensed or primary users (PUs). Deep learning has given a better way to analyze signals compared to
Externí odkaz:
https://doaj.org/article/edb0c7e6555f4452887901ffdf35b0f5
Publikováno v:
Tongxin xuebao, Vol 45, Pp 115-127 (2024)
In order to improve the amplitude loss of signal gradient features and seek the optimal scale of signal description, a soft threshold wideband spectrum sensing algorithm based on enhanced gradient operators was proposed. By introducing the gradient e
Externí odkaz:
https://doaj.org/article/55280d30933b4cca93eaf70f11f81f71
Publikováno v:
Tongxin xuebao, Vol 45, Pp 155-165 (2024)
To deal with the spectrum demand of new low earth orbit satellite (LEO) communication component and the aggregate interference generated by incumbent terrestrial component in future integrated satellite-terrestrial system, a novel space-borne spectru
Externí odkaz:
https://doaj.org/article/fd908d10dda14f61b65386863a6a0709
Autor:
Masoud Moradkhani, Farzad Soltanian
Publikováno v:
مهندسی مخابرات جنوب, Vol 13, Iss 51, Pp 22-36 (2024)
By performing cooperative spectrum sensing in a cognitive radio network, although the network throughput increases with the increase in the number of secondary users, but at the same time, it also causes an increase in energy consumption. This makes
Externí odkaz:
https://doaj.org/article/cb9c5bbc2fcb4ea6aef7d8f01a27902f