Active Reconfigurable Intelligent Surfaces-Aided Wireless Communication System
| Autor: | Alain R. Ndjiongue, Mohamed H. Ahmed, Majid H. Khoshafa, Telex M. N. Ngatched |
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| Rok vydání: | 2021 |
| Předmět: |
Wireless network
business.industry Computer science 020206 networking & telecommunications 02 engineering and technology Signal Computer Science Applications Reduction (complexity) Signal-to-noise ratio Wireless communication systems Modeling and Simulation 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business Wireless sensor network Computer hardware |
| Zdroj: | IEEE Communications Letters. 25:3699-3703 |
| ISSN: | 2373-7891 1089-7798 |
| Popis: | In this letter, we investigate the use of active elements in reconfigurable intelligent surfaces (RIS) to overcome the double-fading problem introduced in the RIS-aided link in a wireless communications system. Towards this end, each active RIS element amplifies the reflected incident signal rather than only reflecting it has done in passive RIS modules. As revealed in our analysis and simulation, the use of active elements leads to a drastic reduction in the size of RIS to achieve a given performance level. Furthermore, a practical design for active RIS is proposed. |
| Databáze: | OpenAIRE |
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