Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Ghaya Rekaya"'
Publikováno v:
Entropy, Vol 26, Iss 8, p 626 (2024)
This paper proposes methods for Machine Learning (ML)-based Beam Alignment (BA), using low-complexity ML models, and achieves a small pilot overhead. We assume a single-user massive mmWave MIMO, Uplink, using a fully analog architecture. Assuming lar
Externí odkaz:
https://doaj.org/article/c0d170319ab24743a6633e3fb5735416
Publikováno v:
IEEE Access, Vol 9, Pp 113997-114007 (2021)
This paper investigates the uplink reception in the cloud radio access network (C-RAN), sometimes called centralized-RAN. C-RAN is an architecture for cellular networks which consists of many remote radio units (RRUs) connected to a central processor
Externí odkaz:
https://doaj.org/article/6601ce2b641f425a95b44dabb0f1cc7a
Publikováno v:
Entropy, Vol 22, Iss 6, p 668 (2020)
This paper investigates the achievable per-user degrees-of-freedom (DoF) in multi-cloud based sectored hexagonal cellular networks (M-CRAN) at uplink. The network consists of N base stations (BS) and K ≤ N base band unit pools (BBUP), which functio
Externí odkaz:
https://doaj.org/article/77084a8a00234cf791e5aa076682fcbe
Publikováno v:
Applied Sciences, Vol 8, Iss 3, p 326 (2018)
Space-division multiplexing over few-mode fibers is a promising solution to increase the capacity of the future generation of optical transmission systems. Mode-dependent loss (MDL) is known to have a detrimental impact on the capacity of few-mode fi
Externí odkaz:
https://doaj.org/article/9dab41c2049e4bf3a08760f1528ec1a8
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2008 (2007)
We propose some new adaptive amplify-and-forward (AF) and decode-and-forward (DF) protocols using a selection. The new selection criterion is a function of the instantaneous capacities of all possible transmission schemes (with or without cooperation
Externí odkaz:
https://doaj.org/article/623791b077af4e6a8975e0fe6877221a
This paper derives upper and lower bounds on the secrecy capacity-memory tradeoff of a wiretap erasure broadcast channel (BC) with Kw weak receivers and Ks strong receivers, where weak receivers, respectively strong receivers, have same erasure proba
Externí odkaz:
http://arxiv.org/abs/1801.00606
The design of linear STBCs offering a low-complexity ML decoding using the well known Sphere Decoder (SD) has been extensively studied in last years. The first considered approach to derive design criteria for the construction of such codes is based
Externí odkaz:
http://arxiv.org/abs/1605.02899
Autor:
Mejri, Asma, Othman, Ghaya Rekaya-Ben
We address in this paper decoding aspects of the Compute-and-Forward (CF) physical-layer network coding strategy. It is known that the original decoder for the CF is asymptotically optimal. However, its performance gap to optimal decoders in practica
Externí odkaz:
http://arxiv.org/abs/1404.4453
In this paper, we propose a practical implementation of the Dynamic Decode and Forward (DDF) protocol based on rateless codes and HARQ. We define the macro diversity order of a transmission from several intermittent sources to a single destination. C
Externí odkaz:
http://arxiv.org/abs/1106.5364
Perfect Space-Time Codes (STC) are optimal codes in their original construction for Multiple Input Multiple Output (MIMO) systems. Based on Cyclic Division Algebras (CDA), they are full-rate, full-diversity codes, have Non-Vanishing Determinants (NVD
Externí odkaz:
http://arxiv.org/abs/1011.0474