COMPARATOR NETWORK AIDED DETECTION FOR MIMO RECEIVERS WITH 1-BIT QUANTIZATION

Autor(es)

Fernandes, Ana Beatriz L. B. ; Shao, Zhichao ; Landau, Lukas T. N. ; de Lamare, Rodrigo C. ; Matthews, MB

• Tipo de documento: Artigo Científico
• Fonte: 2020 54TH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, AND COMPUTERS; v. N/A, p. 4-pg., 2020-01-01.

Resumo

In this study, we propose comparator network-aided MIMO systems with 1-bit ADCs at the receiver. During the uplink transmission, the received signals simultaneously flow into the 1-bit ADCs and the comparator network, where the latter is composed of several simple comparators and each comparator has binary output. Two comparator networks are proposed, namely, fully and partially connected networks. Based on the proposed system design, we develop a low-resolution aware linear minimum mean-squared error detector according to the Bussgang theorem. We also devise a greedy search-based partially connected network that can use much less comparators to approach the performance of the fully connected network. Simulation results show that by taking into account the additional comparator network the system can outperform the existing low-resolution detection scheme in terms of bit error rate. (AU)

• Processo FAPESP: 18/12579-7 - Tecnologias habilitadores para a Internet das Coisas
• Beneficiário: Vitor Heloiz Nascimento
• Modalidade de apoio: Auxílio à Pesquisa - Temático