Listar IC - Contribuciones a congresos científicos por centro "E.T.S.I. de Telecomunicación"
Mostrando ítems 41-60 de 66
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Network Anomaly Classification by Support Vector Classifiers Ensemble and Non-linear Projection Techniques
De la Hoz Franco, Emiro; Ortiz-García, Andrés
; Ortega, Julio; De la Hoz Correa, Eduardo (Springer, 2013-09)
Network anomaly detection is currently a challenge due to the number of different attacks and the number of potential attackers. Intrusion detection systems aim to detect misuses or network anomalies in order to block ports ... -
New open access software designed for the recognition of daily microstructures used in ageing fish
Nava-Baro, Enrique; Rey, Javier; Clemente-Medina, María del Carmen; García, Alberto; Otero-Roth, Pablo; Piñeiro, Carmen Gloria[et al.] (2014-10-28)
Ageing methods for most of the exploited fish species are not validated, and consequently age data series often have important gaps and uncertainty manifesting its consequences on age-based fisheries assessment. In ... -
On Some Unifications Arising from the MIMO Rician Shadowed Model
Moreno-Pozas, Laureano; Martos-Naya, Eduardo (IEEE, 2016)
This paper shows that the proposed Rician shadowed model for multi-antenna communications allows for the unification of a wide set of models, both for multiple-input multiple-output (MIMO) and single- input single-output ... -
Parametric model of spectral envelope to synthesize realistic intensity variations in singing voice
Molina, Emilio; Barbancho-Pérez, Isabel; Barbancho-Pérez, Ana María; Tardón-García, Lorenzo José (2014-05-28)
In this paper, we propose a method to synthesize the natural variations of spectral envelope as intensity varies in singing voice. To this end, we propose a parametric model of spectral envelope based on novel 4-pole ... -
Planificación S-TDMA en redes submarinas de comunicaciones inalámbricas
Luque-Nieto, Miguel Ángel; Moreno-Roldán, José Miguel; Poncela-González, Javier; Otero, Pablo; Fernández-Salas, Luis Miguel; Díaz-Del-Río, Víctor[et al.] (Centro Universitario de la Defensa de Marin, 2015)
Las redes submarinas de sensores son de importancia en la vigilancia y monitorización del medio submarino. Si se desea que las redes sean inalámbricas y con un alcance superior a unos pocos metros, las comunicaciones han ... -
Polarization management for coherent optical receivers
Halir, Robert; Ortega-Moñux, Alejandro; Pérez-Galacho, Diego; Alonso-Ramos, C.; Ruiyong, Zhang; Reyes-Iglesias, Pedro José; Romero-García, Sebastián; Godoy-Rubio, Rafael; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Runge, Patrick[et al.] (2014-06-03)
The constant growth of bandwidth requirements in optical communication networks has prompted the evolution from conventional on-off-keying (OOK) transmission techniques to coherent, polarization multiplexed schemes. The ... -
Protocolo de Cooperación Adaptativo para Sistemas de Comunicaciones Opticas Atmosféricas
Boluda-Ruiz, Rubén; García-Zambrana, Antonio (2014-09-16)
En concreto, se ha analizado un sistema de comunicaciones cooperativas formado por 3 enlaces FSO con retransmision DF usando IM/DD sobre canales con turbulencia atmosferica y desalineamiento entre el transmisor y el ... -
Re-inventing Multimode Interference Couplers Using Subwavelength Gratings
Ortega-Moñux, Alejandro; Halir, Robert; Maese-Novo, Alejandro; Alonso-Ramos, C.; Zavargo-Peche, Luis; Pérez-Galacho, Diego; Molina-Fernández, Íñigo; Wanguemert-Pérez, Juan Gonzalo; Cheben, Pavel; Schmid, Jens H.; Lapointe, J.; Xu, Dan-Xia; Janz, Siegfried[et al.] (European Physical Society, IEEE, The Optical Society, 2013)
We use the concept of subwavelength grating (SWG) refractive-index-engineering to propose and experimentally demonstrate a reduced size, slotted 2x2 MMI coupler. We also present an ultra-broadband 2x2 MMI coupler which ... -
Real-time audio interaction in serious games for music learning
In this LBD, we present several Apps for playing while learning music or for learning music while playing. The core of all the games is based on the good performance of the real-time audio interaction algorithms developed ... -
Receptor coherente integrado ‘colorless’ de gran margen dinámico basado en un acoplador a 120º
Un receptor ‘colorless’ requerirá en su banda de operación de un elevado rechazo en modo común CMRR para reducir eficientemente la interferencia en banda base ocasionada por los canales colindantes al detectado y conseguir ... -
Resilient RFID Grouping Proofs with Missing Tag Identification
Burmester, Mike; Munilla-Fajardo, Jorge (Springer, 2016)
The adoption of RFID (Radio Frequency Identification) technology has greatly improved the efficiency of inventory control, supply-chain management and logistics. With RFID group scanning, an RFID reader scans a group of ... -
Robust and tunable integrated polarization rotator
Alonso-Ramos, C.; Halir, Robert; Ortega-Moñux, Alejandro; Cheben, Pavel; Vivien, Laurent; Molina-Fernández, Íñigo; Marris-Morini, Delphine; Janz, Siegfried; Xu, Dan-Xia; Schmid, Jens H.[et al.] (2014-03-11)
Integrated polarization rotators suffer from very high sensitivity to fabrication errors. A polarization rotator scheme that substantially increases fabrication tolerances is proposed. In the proposed scheme, two tunable ... -
Secure Distributed System inspired by Ant Colonies for Road Traffic Management in Emergency Situations
Peinado-Domínguez, Alberto; Ortiz-García, Andrés; Munilla-Fajardo, Jorge (2013-09-04)
In this work, we present a distributed system designed for road traffic management. The system is inspired by the behavior of the ant colonies. The distributed design responds to the particular limitations of an emergency ... -
Self-organized Routing For Radial Underwater Networks
Poncela-González, Javier (2016-11-29)
Due to significant propagation delay of acoustic waves in underwater communication, terrestrial routing protocols are not applicable for UWSN. To overcome this problem, some routing protocols have been proposed for UWSN ... -
Silicon-on-insulator polarization controller with relaxed fabrication tolerances
Sarmiento-Merenguel, Jose Darío; Alonso-Ramos, C.; Halir, Robert; Vivien, Laurent; Cheben, Pavel; Ortega-Moñux, Alejandro; Molina-Fernández, Íñigo; Leroux, X.; Marris-Morini, Delphine; Xu, Dan-Xia; Schmid, Jens H.; Janz, Siegfried[et al.] (2014-07-31)
Polarization control is essential in applications ranging from optical communications to interferometric sensors. The implementation of in- tegrated polarization controllers is challenging as they require polariza- tion ... -
Subjective quality in underwater acoustic networks
Poncela-González, Javier (2014-12-22)
Experiencias sobre calidad subjetiva percibida en redes acústicas submarinas -
Subwavelength Index Engineering for SOI Waveguides
Halir, Robert; Luque-González, José Manuel; Wang, S.; Sarmiento-Merenguel, Jose Darío; Sánchez-Postigo, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Cheben, Pavel; Schmid, Jens H.; Xu, Dan-Xia; Janz, Siegfried; Lapointe, J.; Molina-Fernández, Íñigo; Ortega-Moñux, Alejandro[et al.] (2016-09-06)
Photonic structures with a sub-wavelength pitch, small enough to suppress diffraction, can behave as equivalent homogenous materials that can be engineered to exhibit a specific refractive index and dispersion. Here we ... -
Subwavelength metamaterial engineering for silicon photonics
Halir, Robert; Ortega-Moñux, Alejandro; Soler-Penades, Jordi; Luque-González, José Manuel; Sarmiento-Merenguel, Jose Darío; Sánchez-Postigo, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Schmid, Jens H.; Xu, Dan-Xia; Janz, Siegfried; Lapointe, J.; Molina-Fernández, Íñigo; Nedeljkovic, Milos; Mashanovich, Goran Z.; Cheben, Pavel[et al.] (2017-02-06)
Waveguides structured at the subwavelength scale frustrate di raction and behave as optical metamaterials with controllable refractive index. These structures have found widespread applications in silicon photonics, ranging ... -
The Complementary Strip-Slot: From the Unit-Cell of Artificial Transmission Lines to the Basic Element of Novel Antennas
Abdo-Sánchez, María Elena; Esteban Marzo, Jaime; Martín-Guerrero, Teresa María; Page de la Vega, Juan Enrique; Camacho-Peñalosa, Carlos (2014-09-11)
The complementary strip-slot radiating element and its applications are reviewed. The element is a modified version of the conventional microstrip-fed slot that presents very broad matching. Its inherent lattice equivalent ... -
The dynamics of user channels in massive MIMO systems
Martos-Naya, Eduardo; López-Martínez, Francisco Javier; París-Ángel, José Francisco; Goldsmith, Andrea (2014-10-31)
The SNR associated with the different users in large-scale MIMO systems depends on the magnitude of the eigenvalues of the channel power matrix HH H. While it is known that the spread between the best and worst channels ...