تصفح Faculty Contributions حسب الموضوع "Computer simulation"
السجلات المعروضة 1 -- 17 من 17
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Control of doubly-fed induction machine storage system for constant charging/discharging grid power using artificial neural network
( IET , 2012 , Conference Paper)A large-capacity low-speed flywheel energy storage system based on a doubly-fed induction machine (DFIM) basically consists of a wound-rotor induction machine, and a back-to-back converter for rotor excitation. It has been ... -
Detecting the greedy spectrum occupancy threat in cognitive radio networks
( IEEE Computer Society , 2014 , Conference Paper)Recently, security of cognitive radio (CR) is becoming a severe issue. There is one kind of threat, which we call greedy spectrum occupancy threat (GSOT) in this paper, has long been ignored in previous work. In GSOT, a ... -
Development of energy efficient battery electric car for Shell Eco-Marathon competition - Qatar University experience
( IEEE Computer Society , 2014 , Conference Paper)The paper reports on the participation of Electrical Engineering students of Qatar University students in Shell Eco Marathon (SEM) competition, which aims at designing and racing energy efficient vehicles. This participation ... -
Dynamic performance simulation of an aeroderivative gas turbine using the matlab simulink environment
( American Society of Mechanical Engineers (ASME) , 2013 , Conference Paper)In fossil fuel applications, such as air transportation and power generation systems, gas turbine is the prime mover which governs the aircraft's propulsive and the plant's thermal efficiency, respectively. Therefore, an ... -
Dynamic simulation and optimization targeting emission source reduction during an ethylene plant start-up operations
( Elsevier Ltd , 2016 , Article)Chemical plant flare minimization has been practiced not only during regular operating conditions but also abnormal operations such as start-ups, shutdowns, and process upsets. This paper focuses on introducing a generic ... -
End-to-end performance of transmission systems with relays over Rayleigh-fading channels
( IEEE , 2003 , Article)End-to-end performance of two-hops wireless communication systems with nonregenerative relays over flat Rayleigh-fading channels is presented. This is accomplished by deriving and applying some new closed-form expressions ... -
Enhancing spectral-energy efficiency for LTE-Advanced heterogeneous networks: A users social pattern perspective
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Article Review)The development of LTE-Advanced and beyond cellular networks is expected to offer considerably higher data rates than the existing 3G networks. Among the many potential technologies in LTE-Advanced systems, users' ... -
Impact of location heterogeneity on random walk mobility models
( Institute of Electrical and Electronics Engineers Inc. , 2013 , Conference Paper)This paper investigates random walk mobility models with location heterogeneity, where different locations may have different neighboring regions.With the assumption of totally n locations, we consider two cases, i.e., ... -
Modeling and analysis of an infrastructure service request queue in multichannel V2I communications
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Article)This paper presents a concise yet comprehensive description of a multichannel vehicle-to-infrastructure communication system. Existing mathematical models for such a system overlook some of its essential behavioral ... -
Nonlinear fault diagnosis of jet engines by using a multiple model-based approach
( ASME , 2012 , Article)In this paper, a nonlinear fault detection and isolation (FDI) scheme that is based on the concept of multiple model approach is proposed for jet engines. A modular and a hierarchical architecture is proposed which enables ... -
Novel linearizer for tangent/cotangent converter
( IEEE , 2009 , Conference Paper)Resolvers and other types of sinusoidal encoders provide electrical signals whose amplitudes are related to the sine and cosine of the mechanical shaft angle ¿ over the full 360° range. The tangent/cotangent converter, ... -
On the group proportional fairness of frequency domain resource allocation in L-SC-FDMA based LTE uplink
( IEEE , 2010 , Conference Paper)Localized single carrier frequency division multiple access (L-SC-FDMA) has been selected as the uplink transmission scheme in 3GPP Long Term Evolution (LTE) due to its low Peak to Average Power Ratio (PAPR) over OFDMA in ... -
Performance analysis for truncated ARQ based DSFBC-CO-OFDM communication scheme
( IEEE , 2011 , Conference Paper)We develop and analyze an ARQ (Automatic Repeat reQuest) based distributed space-frequency block code-orthogonal frequency division multiplexing protocol for cooperative communications (DSFBC-CO-OFDM). At PHY layer, space ... -
Performance analysis of selective cooperation in underlay cognitive networks over Rayleigh channels
( IEEE , 2011 , Conference Paper)Underlay cognitive networks should follow strict interference thresholds to operate in parallel with primary networks. This constraint limits their transmission power and eventually the area of coverage. Therefore, it is ... -
Sinusoidal PWM modulation technique of five-phase current-source-converters with controlled modulation index
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)Applications such as multiphase machine drives and wind energy conversion systems are normally based on voltage source converters (VSCs) which feature a convenient and familiar control scheme. In high-power medium voltage ... -
Three-dimensional finite element analysis of permanent magnet brushless DC motor drives - Status of the state of the art
( IEEE , 1996 , Article)This paper reviews recent advances in the state of the art of applying three-dimensional finite-element (3-D-FE) magnetic field computation techniques to the analysis and quantification of parameters and performance of ... -
VALID-2: A practical modeling, simulation and verification software for distributed systems
( IEEE , 2004 , Conference Paper)Distributed systems verification is one of the main issues in software engineering. It is considered as the major field of the formal specification techniques. However, many difficulties remain. In fact, the principal ...