Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Quang-Doanh Vu"'
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2018, Iss 1, Pp 1-18 (2018)
Abstract This paper focuses on energy-efficient coordinated multi-point (CoMP) downlink in multi-antenna multi-cell wireless communications systems. We provide an overview of transmit beamforming designs for various energy efficiency (EE) metrics inc
Externí odkaz:
https://doaj.org/article/250108bcc7ca4b0280a43beb3ac903ce
Publikováno v:
IEEE Transactions on Vehicular Technology. 71:6228-6244
Reconfigurable intelligent surface (RIS) has emerged as a cost- and energy-efficient solution to enhance the wireless communications capacity. However, recent studies show that a very large surface is required for a RIS-assisted communications system
Publikováno v:
IEEE Transactions on Vehicular Technology. 70:1946-1951
We consider downlink transmission whereby a multiantenna base station simultaneously transmits data to multiple single-antenna users. We focus on slow flat fading channel where the channel state information is imperfect, the channel estimation error
Publikováno v:
ICC Workshops
We propose a novel concept of hybrid relay-reflecting intelligent surface (HR-RIS), in which a single or few elements are deployed with power amplifiers (PAs) to serve as active relays, while the remaining elements only reflect the incident signals.
Publikováno v:
IEEE Transactions on Communications. 67:7043-7057
We proposed several energy-efficient resource allocation algorithms for the downlink of an orthogonal frequency-division-multiple-access (OFDMA) based femtocell heterogeneous networks (HetNets). Heterogeneous QoS and fairness in rate are investigated
Publikováno v:
Green Communications for Energy-Efficient Wireless Systems and Networks ISBN: 9781839530678
Cloud radio access network (C-RAN) is an evolutionary radio network architecture in which a cloud-computing-based baseband (BB) signal-processing unit is shared among distributed low-cost wireless access points. This architecture offers a number of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9af7bc464c511f6b2e14b53b296deb6e
https://doi.org/10.1049/pbte091e_ch11
https://doi.org/10.1049/pbte091e_ch11
We investigate the coordinated multi-point noncoherent joint transmission (JT) in dense small cell networks. The goal is to design beamforming vectors for macro cell and small cell base stations (BSs) such that the weighted sum rate of the system is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d724c66a9de7a4f1ff16f42c352abc24
Publikováno v:
ICASSP
We consider uplink multiuser wireless communications systems, where the base station (BS) receiver is equipped with a large-scale antenna array and resolution adaptive analog-to-digital converters (ADCs). The aim is to maximize the energy efficiency
Publikováno v:
IEEE Transactions on Communications. 66:1534-1548
We consider downlink transmission in cloud radio access networks with multiple cochannel multicasting groups served by a group of remote radio heads (RRHs), which receive information from a base band unit via finite-capacity fronthaul links. Our aim
Publikováno v:
IEEE Transactions on Wireless Communications. 16:6232-6247
This paper aims at guaranteeing the achievable energy efficiency (EE) fairness in a multicell multiuser multiple-input single-output downlink system. The design objective is to maximize the minimum EE among all base stations (BSs) subject to per-BS p