Rafaela Villalpando-Hernandez
Monterrey Institute of Technology and Higher Education
Energy harvestingRouting protocolSpectral clusteringAlgorithm designWireless networkThe InternetAlgorithmLaplacian matrixPacket forwardingData miningEngineeringTriangulationSpectral efficiencyIndustrial engineeringLinear network codingArticulated robotTelecommunications linkMean squared errorChannel state informationArtificial intelligenceCommunication channelNetwork packetTerrainInterference (wave propagation)UncorrelatedInterpolationAutomatic gain controlAdaptabilityMeasure (mathematics)CryptographyNetwork securityAd hoc wireless distribution serviceFrequency domainStructure (mathematical logic)Vehicular ad hoc networkNetwork topologyNetwork performanceOptimized Link State Routing ProtocolMIMOElectronic engineeringWireless sensor networkRoot locusEfficient energy useBandwidth (computing)Stair climbingObstaclePower managementPerformance improvementEnergy consumptionFusion centerKnowledge FieldRobot designLow complexityComputer networkInterference (communication)Data integrityRoboticsIntrusion detection systemComputer securityKinematicsOrthogonal frequency-division multiplexingComputer scienceNode (networking)Track (rail transport)Packet lossBeamformingVandermonde matrixWirelessPower controlEmergency managementLinear systemDimensionality reductionConfidentialityCluster analysisSignal-to-noise ratioRouting (electronic design automation)Transmission (telecommunications)ConnectivityReal-time computingAlgebraic connectivityFadingRobotMinimum mean square errorMobile ad hoc networkWireless ad hoc networkClimbingRobustness (computer science)
14Publications
4H-index
35Citations
Publications 14
Newest
#1Diego Fernando Carrera (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 3
#2Cesar Vargas-Rosales (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 13
Last. Jose Alejandro Galaviz-Aguilar (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 4
view all 4 authors...
In this paper, we study the problem of optimizing the performance of multi-user millimeter-wave (mmWave) communications in three steps. The first one is given by the use of a new pilot mapping to reduce the inter-user interference effect and to perform more accurate channel estimation. In the second step, we designed a hybrid receiver that, based on the accuracy of the channel state information, chooses between the minimum mean square error (MMSE) and the multi-user regularized zero-forcing beam...
1 CitationsSource
#1Jaime Zuniga-Mejia (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 2
#2Rafaela Villalpando-Hernandez (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 4
Last. Cesar Vargas-Rosales (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 13
view all 3 authors...
Data routing is one of the most essential functions having a direct impact on network performance. Due to the lack of any fixed infrastructure, data routing must be achieved through collaboration of nodes in Reconfigurable Wireless Networks (RWN). This implies that a malicious node can participate in the routing process and launch an attack to gain control over data traffic. Intrusion Detection Systems (IDS) are typically used to recognize malicious activities. Any IDS for routing attack-detecti...
Source
#1Rafaela Villalpando-Hernandez (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 4
#2Cesar Vargas-Rosales (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 13
Last. Alberto Martínez (Tec: Monterrey Institute of Technology and Higher Education)
view all 5 authors...
In recent years, robotics has become an important knowledge field to support development in different areas, such as agriculture. The current methods of walnut gathering are either expensive or cumbersome. In this paper, the design, kinematics analysis and the implementation of a low cost, low complexity walnut gathering robot are presented. The proposed robot in this paper, was build based on a mechanical structure capable of doing the required movements and actions to move throughout rough ter...
Source
#1Rafaela Villalpando-Hernandez (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 4
#2Cesar Vargas-Rosales (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 13
Last. L. A. Bollinger-Rios (Tec: Monterrey Institute of Technology and Higher Education)
view all 6 authors...
Disaster response robots (DRRs) designed to explore dangerous areas in emergency situations (collapses, urban conflagration, earthquakes, floods) represent a design challenge. Therefore, there is the constant need of innovation in the field of navigation through harsh environment. In this paper, we present a design and implementation of a low cost, low power consumption and high terrain adaptability continuous track articulated robot. The proposed design is capable of climbing obstacles and dodg...
Source
Last. Mort Naraghi-PourH-Index: 18
view all 3 authors...
Source
#1Mahdi ZareeiH-Index: 8
Last. Ehab Mahmoud MohamedH-Index: 13
view all 7 authors...
Fast development in hardware miniaturization and massive production of sensors make them cost efficient and vastly available to be used in various applications in our daily life more specially in environment monitoring applications. However, energy consumption is still one of the barriers slowing down the development of several applications. Slow development in battery technology, makes energy harvesting (EH) as a prime candidate to eliminate the sensor’s energy barrier. EH sensors can be the so...
6 CitationsSource
#1Jaime Zuniga-Mejia (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 2
#2Rafaela Villalpando-Hernandez (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 4
Last. Andreas Spanias (ASU: Arizona State University)H-Index: 32
view all 4 authors...
Reconfigurable wireless networks, such as ad hoc or wireless sensor networks, do not rely on fixed infrastructure. Nodes must cooperate in the multi-hop routing process. This dynamic and open nature make reconfigurable networks vulnerable to routing attacks that could degrade significantly network performance. Intrusion detection systems consist of a set of techniques designed to identify hostile behavior. In this paper, there are several approaches for intrusion detection in reconfigurable netw...
3 CitationsSource
#1Cesar Vargas-Rosales (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 13
#2Rafaela Villalpando-Hernandez (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 4
Last. Jose V. Cuan (Tec: Monterrey Institute of Technology and Higher Education)
view all 3 authors...
In wireless communication systems, it is important to have estimates of the channel in order to achieve high data rates and deliver services with the quality expected by the users. There are several channel estimation techniques used in OFDM systems, some of them based on training sequences and others on blind estimation techniques. In this paper we introduce a data aided channel estimation technique using the Vandermonde Matrix (VM)for the estimation and an interpolation through Frequency Domai...
Source
#1Mahdi Zareei (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 12
#2Cesar Vargas-Rosales (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 13
Last. Mubashir Husain Rehmani (WIT: Waterford Institute of Technology)H-Index: 34
view all 6 authors...
The design of routing protocols for wireless sensor networks (WSNs) has been traditionally tackled by assuming battery-powered sensors, in which minimizing the power consumption was the main objective. Advances in technology and the ability to harvest energy from the environment has enabled self-sustaining systems and thus diminish the significance of network lifetime considerations in the design of WSNs. Although WSNs operated by energy-harvesting sensors are not limited by network lifetime, th...
11 CitationsSource
Source