Results 51 to 60 of about 83,036 (231)

Opportunism in Multiuser Relay Channels: Scheduling, Routing and Spectrum Reuse

, 2007
In order to understand the key merits of multiuser diversity techniques in relay-assisted cellular multihop networks, this paper analyzes the spectral efficiency of opportunistic (i.e., channel-aware) scheduling algorithms over a fading multiuser relay ...
Oyman, Ozgur
core   +2 more sources

Physical-Layer Security with Multiuser Scheduling in Cognitive Radio Networks

, 2013
In this paper, we consider a cognitive radio network that consists of one cognitive base station (CBS) and multiple cognitive users (CUs) in the presence of multiple eavesdroppers, where CUs transmit their data packets to CBS under a primary user's ...
Shen, Weiming, Wang, Xianbin, Zou, Yulong   +2 more
core   +1 more source

Resource Allocation for Secure IRS-Assisted Multiuser MISO Systems [PDF]

2019 IEEE Globecom Workshops (GC Wkshps), 2019
In this paper, we study resource allocation design for secure communication in intelligent reflecting surface (IRS)-assisted multiuser multiple-input single-output (MISO) communication systems. To enhance physical layer security, artificial noise (AN) is
Dongfang Xu, Xianghao Yu, Yan Sun, Derrick Wing Kwan Ng, R. Schober   +4 more
semanticscholar   +1 more source

Rising Incidence and Spatiotemporal Dynamics of Emerging and Reemerging Arboviruses in Brazil

Viruses
Background: Brazil has witnessed the co-circulation of dengue virus (DENV), Zika virus (ZIKV), and chikungunya virus (CHIKV), with outbreaks exacerbated by environmental factors, social determinants, and poor sanitation.
Matheus Daudt-Lemos, Alice Ramos-Silva, Renan Faustino, Tatiana Guimarães de Noronha, Renata Artimos de Oliveira Vianna, Mauro Jorge Cabral-Castro, Claudete Aparecida Araújo Cardoso, Andrea Alice Silva, Fabiana Rabe Carvalho   +8 more
doaj   +1 more source

Beamforming and Multiuser Detection in CDMA Systems with External Interferences [PDF]

, 1999
Multiuser detection has been investigated to mitigate the near-far effect in CDMA systems. Antenna arrays have been shown to provide spatial diversity and cancel undesired signals.
Fernández Rubio, Juan Antonio, Muñoz Medina, Olga   +1 more
core   +1 more source

Multiuser Switched Diversity Scheduling Schemes

, 2012
Multiuser switched-diversity scheduling schemes were recently proposed in order to overcome the heavy feedback requirements of conventional opportunistic scheduling schemes by applying a threshold-based, distributed, and ordered scheduling mechanism. The
Alnuweiri, Hussein, Alouini, Mohamed-Slim, Shaqfeh, Mohammad   +2 more
core   +1 more source

Blind multiuser deconvolution in fading and dispersive channels [PDF]

, 1995
An adaptive near-far resistant technique for the blind joint multiuser identification and detection in asynchronous CDMA systems is analyzed in fading and dispersive GSM channels.Peer ReviewedPostprint (published ...
Rodríguez Fonollosa, Javier, Rodríguez Fonollosa, José Adrián, Vidal Manzano, José, Zvonar, Z   +3 more
core   +1 more source

Mobility Support for Full-Duplex Multiuser Bidirectional VLC Networks

IEEE Photonics Journal, 2015
In this paper, a novel and unique mobility support scheme for a color-clustered (CC) full-duplex multiuser (MU) bidirectional visible light communication (VLC) network is presented.
Atul Sewaiwar, Samrat Vikramaditya Tiwari, Yeon Ho Chung   +2 more
doaj   +1 more source

Energy Efficient Symbol-Level Precoding in Multiuser MISO Channels [PDF]

, 2015
This paper investigates the idea of exploiting interference among the simultaneous multiuser transmissions in the downlink of multiple antennas systems.
Alodeh, Maha, Chatzinotas, Symeon, Ottersten, Bjorn   +2 more
core   +2 more sources

Smart Flexible Tactile Sensors: Recent Progress in Device Designs, Intelligent Algorithms, and Multidisciplinary Applications

Advanced Intelligent Discovery, EarlyView.
Flexible tactile sensors have considerable potential for broad application in healthcare monitoring, human–machine interfaces, and bioinspired robotics. This review explores recent progress in device design, performance optimization, and intelligent applications. It highlights how AI algorithms enhance environmental adaptability and perception accuracy
Siyuan Wang, Ming Dong, Rongrong Bao, Caofeng Pan   +3 more
wiley   +1 more source