Zobrazeno 1 - 10
of 2 193
pro vyhledávání: '"cognitive radio (CR)"'
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-19 (2024)
Abstract With the development of wireless communication technology, the number of devices accessing the communication network is increasing. This paper addresses critical issues such as low spectrum resource utilization and the energy constraints of
Externí odkaz:
https://doaj.org/article/c08a15dbf25a4a339678ff6357b2e32a
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2024, Iss 1, Pp 1-17 (2024)
Abstract Cognitive radio (CR) systems have emerged as effective tools for improving spectrum efficiency and meeting the growing demands of communication. This study focuses on a flexible CR system based on opportunistic spectrum access technology, wh
Externí odkaz:
https://doaj.org/article/1a91ebeae3794cd28e2f33f09fae4ed4
Autor:
Aneesh Sarjit S. Musuvathi, Jofin F. Archbald, T. Velmurugan, D. Sumathi, S. Renuga Devi, K. S. Preetha
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-19 (2024)
Abstract With the birth of the IoT era, it is evident that the existing number of devices is going to rise exponentially. Any two devices will communicate with each other using the same frequency band with limited availability. Therefore, it is of vi
Externí odkaz:
https://doaj.org/article/8c25334d1bce47419cb0941583a60bc2
Publikováno v:
Applied Sciences, Vol 14, Iss 18, p 8146 (2024)
Security is an important consideration when delivering information-aware messages to vehicles that are far away from the current location of the information-sending vehicle. This information helps the receiver to save fuel and time by making wise dec
Externí odkaz:
https://doaj.org/article/41a0e429686b41848a21b624a5b84f90
Publikováno v:
Journal of Sensor and Actuator Networks, Vol 13, Iss 5, p 46 (2024)
For a multiuser multiple-input–multiple-output (MIMO) overlay cognitive radio (CR) network, an opportunistic interference alignment (IA) technique has been proposed that allows spectrum sharing between primary users (PUs) and secondary users (SUs)
Externí odkaz:
https://doaj.org/article/0da5941de59d42178871cb2938019ffe
Autor:
Rania H. Elabd, Amr H. Hussein
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2023, Iss 1, Pp 1-22 (2023)
Abstract This paper presents a novel design of a compact, wideband tunable microstrip filtenna system for effective spectrum sensing in cognitive radio (CR) applications. The proposed filtenna structure has a total bandwidth of $$1.63\,\text{GHz}$$ 1
Externí odkaz:
https://doaj.org/article/81c676ca356347acb7346f96678074e5
Autor:
Huu Q. Tran, Byung Moo Lee
Publikováno v:
Sensors, Vol 24, Iss 15, p 4869 (2024)
In this paper, we propose a novel system integrating reconfigurable intelligent surfaces (RISs) with cognitive radio (CR) technology, presenting a forward-looking solution aligned with the evolving standards of 6G and beyond networks. The proposed RI
Externí odkaz:
https://doaj.org/article/010edc7dbd3848c7843b89d4dfb72f51
Publikováno v:
IEEE Access, Vol 11, Pp 66201-66211 (2023)
This article presents a four-port multiple input multiple output (MIMO) antenna designed and demonstrated for cognitive radio (CR) applications. The proposed geometry is made of a single-layer dielectric substrate, where metallic patterns and electro
Externí odkaz:
https://doaj.org/article/b863d019708c4327a355f1c91dc8a68b
Autor:
Huaxia Wang, Yu-Dong Yao
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 4, Pp 1303-1316 (2023)
In cognitive radio (CR) networks, a secondary user access control (SUAC) technique has been designed to enhance spectrum efficiency, in which a jamming signal is deliberately injected to maintain reliable sensing performance of authorized secondary u
Externí odkaz:
https://doaj.org/article/2fa01edbfb124cffbbe3351db65376be
Publikováno v:
IEEE Access, Vol 11, Pp 16021-16031 (2023)
In this paper, we study a cognitive radio (CR)-enabled wireless powered communication network (WPCN) with an intelligent reflecting surface (IRS). A cognitive wireless powered communication network (CWPCN) consisting of one secondary wireless powered
Externí odkaz:
https://doaj.org/article/2533928b530e41a1ac2da796edab3097