Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection

Autor: Minh-Nghia Nguyen, Nam-Phong Nguyen, Daniel B. Da Costa, Huu-Khuong Nguyen, Rafael Timoteo De Sousa

Publikováno v: IEEE Access, Vol 5, Pp 6678-6687 (2017)

In this paper, we study the secrecy performance of a half-duplex cognitive relay network in the presence of multiple eavesdroppers and multiple primary users. In particular, generic K th best relay selection schemes for opportunistic relay selection

Externí odkaz: https://doaj.org/article/8aeae4c965a748538022c7d2c482df4c

Counteracting Eavesdropper Attacks Through Reconfigurable Intelligent Surfaces: A New Threat Model and Secrecy Rate Optimization

Autor: Daniel B. da Costa, Miaowen Wen, Konstantinos D. Katsanos, George C. Alexandropoulos

The potential of Reconfigurable Intelligent Surfaces (RISs) for energy-efficient and performance-boosted wireless communications is recently gaining remarkable research attention, motivating their consideration for various $5$-th Generation (5G) Adva

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78c838cc025aa2479d1f78c676417ef6
https://doi.org/10.36227/techrxiv.21674759.v1

Dual-Polarized RSMA for Massive MIMO Systems

Autor: Arthur S. de Sena, Pedro H. J. Nardelli, Daniel B. da Costa, Petar Popovski, Constantinos B. Papadias, Merouane Debbah

Publikováno v: Sena, A S D, Nardelli, P H J, Costa, D B D, Popovski, P, Papadias, C B & Debbah, M 2022, ' Dual-Polarized RSMA for Massive MIMO Systems ', IEEE Wireless Communications Letters, vol. 11, no. 9, 9830742, pp. 2000-2004 . https://doi.org/10.1109/LWC.2022.3191547

This letter proposes a novel dual-polarized rate-splitting multiple access (RSMA) technique for massive multiple-input multiple-output (MIMO) networks. The proposed strategy transmits common and private symbols in parallel through dynamic polarizatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ae0683f172c439e0bfa1638e9a86ec0
https://vbn.aau.dk/ws/files/531216217/Dual_Polarized_RSMA_for_Massive_MIMO_Systems.pdf

Ergodic Capacity Analysis of NOMA-Based Two-Way Relaying Systems

Autor: Kaishun Wu, Omer Waqar, Rukhsana Ruby, Daniel B. da Costa, Basem M. Elhalawany, Wali Ullah Khan

In this work, a non-orthogonal multiple access NOMA) relying on a two-way relaying (TWR) approach is investigated to promote more efficient use of the available spectrum. Specifically, a NOMA-enabled half-duplex decode-and-forward relay node is used

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a1fed3630c8cc1255e58e022124ecfd
https://doi.org/10.36227/techrxiv.19597129

Hyperparameter Free MEE-FP based Learning for Next Generation Communication Systems

Autor: Daniel B. da Costa, Georges Kaddoum, Rangeet MItra

Information theoretic learning (ITL) criteria have emerged useful for mitigating degradations caused by unknown non-Gaussian noise processes in future wireless communication systems. Specifically, the reproducing kernel Hilbert space (RKHS) based app

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bdb62639f411ea0d2e0dd4a2e5d745c
https://doi.org/10.36227/techrxiv.16640035.v1