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- Title
Spectrum Sensing Using Intelligent Reflecting Surfaces with Multi-antennas Energy Harvesting.
- Authors
Alhamad, Raed
- Abstract
In this paper, we suggest the use of Intelligent Reflecting Surfaces (IRS) to improve the spectrum sensing process using the energy detector and the throughput of Cognitive Radio Networks (CRN). The Primary Source (PS) harvests energy using the received signals on n r antennas from node A. The harvested energy is employed to transmit data to Primary Destination PD. The transmitted signal is reflected by IRS so that all reflections have a null phase at Secondary Source SS where spectrum sensing is performed. Spectrum sensing using IRS equipped with N = 32 reflectors offers 27 dB and 30 dB gain when compared to spectrum sensing without IRS for a number of antennas n r = 2 and 3 (Alhamad and Boujemaa in Wirel Pers Commun, 2021). We also suggest the use of IRS to increase the harvested energy and improve the spectrum sensing process. We also derive the primary throughput of CRN where the PS harvests energy using received signals on multiple antennas and there is an IRS that reflects PS signals to the PD. We derive the secondary throughput when the SS harvests energy and an IRS is located between the SS and the Secondary Destination SD.
- Subjects
ENERGY harvesting; COGNITIVE radio; ANTENNAS (Electronics); RADIO networks; ENERGY consumption
- Publication
Wireless Personal Communications, 2024, Vol 135, Issue 2, p1103
- ISSN
0929-6212
- Publication type
Article
- DOI
10.1007/s11277-024-11110-6