| Texto completo | |
| Autor(es): |
De Figueiredo, Felipe A. P.
[1, 2]
;
Facina, Michelle S. P.
[2]
;
Ferreira, Ricardo Coelho
[2]
;
Ai, Yun
[3]
;
Ruby, Rukhsana
[4]
;
Pham, Quoc-Viet
[5]
;
Fraidenraich, Gustavo
[2]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Inst Nacl Telecomunicacoes Inatel, BR-37540000 Santa Rita Do Sapucai - Brazil
[2] State Univ Campinas UNICAMP, DECOM FEEC, BR-13083852 Campinas - Brazil
[3] Norwegian Univ Sci & Technol, Fac Engn, N-2815 Gjovik - Norway
[4] Shenzhen Univ, Coll Comp Sci & Software Engn, Shenzhen 518060 - Peoples R China
[5] Pusan Natl Univ, Res Inst Comp Informat & Commun, Busan 43241 - South Korea
Número total de Afiliações: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | IEEE ACCESS; v. 9, p. 20768-20787, 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
Despite many studies already published on large intelligent surfaces (LIS), there are still some gaps in mathematical models in the face of possible scenarios. In this work, we evaluate the performance of a single-input single-output (SISO) system in which an LIS acts as a controllable scatterer. We consider that the direct link between the transmitting and receiving devices is non-existent due to a blockage. Quantization phase errors at the LIS are considered since a high precision configuration of the reflection phases is not always feasible. We derive exact closed-form expressions for the spectral efficiencies, outage probabilities, and average symbol error rate (SER) of different modulations schemes. We assume a more comprehensive scenario in which b bits are dedicated to the phase adjustment of the LIS' elements. Based on Monte Carlo simulations, we prove the excellent accuracy of our approach and investigate the behavior of the power scaling law and the power required to reach a specific capacity, depending on the number of reflecting elements. We show that an LIS with approximately fifty elements and four dedicated bits for phase quantization outperforms the conventional system without LIS. (AU) | |
| Processo FAPESP: | 16/16181-2 - Sistemas de Comunicação Sem-Fio Multiple-Input Multiple-Output com Elevado Número de Antenas (MIMO massivo) |
| Beneficiário: | Michelle Soares Pereira Facina |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |