Buscar
Mostrando ítems 1-10 de 190
New optical filter employing multireflection mirror to provide design flexibility for WDMA
(2008-06-22)
A novel optical device employing an amplified ring resonator and a multireflecting mirror inside, is presented. Is founded its transfer function. Also simple expressions for the separation of the two maximums of this novel ...
Multichirp code division multiple access for smart grids and internet of things
(Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2018)
Uplink CFO compensation for FBMC multiple access and OFDMA in a high mobility scenario
(Elsevier, 2014-06)
We study in this work CFO compensation methods for two multicarrier multiple access techniques in a high mobility scenario. In particular, we consider orthogonal frequency division multiple access (OFDMA) and filter bank ...
Capacity analysis in CDMA systems using GIS based planning tools
(EUROCOMM 2000. Information Systems for Enhanced Public Safety and Security. IEEE/AFCEAFacultad de IngenieríaIngeniería TelemáticaDepartamento Académico de Tecnologías de Información y Comunicaciones (TICs), 2010-04-14)
Exploiting spatial diversity in overloaded MIMO LDS-OFDM multiple access systems
(IEEE, 2017)
In this paper, we consider the deployment of multiple antennas as a way to exploit spatial diversity in the uplink of multiple access systems that adopt low-density spreading (LDS) with orthogonal frequency-division ...
Analysis of the CFO Successive Interference Cancellation for the OFDMA Uplink
(Springer, 2016-11)
The uplink of orthogonal frequency division multiple access or single-carrier frequency division multiple access suffers multiple access interference when carrier frequency offset (CFO) is not properly estimated and ...
Pulse design for reducing intercarrier interference in FBMC
(Institute of Electrical and Electronics Engineers Inc., 2017)
OFDM is widely used as a solution for broadband communications with multicarrier signals, but has disadvantages when it is used on certain applications especially in multiuser environments, where each user is assigned a ...
A flexible mid-term frequency domain scheduler for resource allocation in HetNets based on the SINR requested by users
(ElsevierFacultad de IngenieríaIngeniería de sistemasTecnologías de Información y ComunicacionesMadrid, 2015-03-01)
This article treats the resource allocation problem for the downlink of a multi-cell, multiservice Wireless Mobile Communications System (WMCS) with heterogeneous architecture deployed into an urban environment using Long ...