Browsing Electrical Engineering by Publication Date

Now showing items 41-60 of 2414

    • A new angle determination method for resolvers 

      Ben-Brahim, Lazhar; Benammar, Mohieddine; Alhamadi, Mohd; Al-Emadi, Nasser; Al-Hitmi, Mohammed ( IEEE , 2008 , Conference Paper)
      A new low cost method for converting the amplitudes of the sine/cosine signals generated by the resolver into a measure of the angle of its shaft. The new method operates without lookup tables (LUT), and takes advantage ...

    • A novel method for estimating the angle from analog co-sinusoidal quadrature signals 

      Benammar, Mohieddine; Ben-brahim, Lazhar; Alhamadi, Mohd A.; Al-Naemi, Mohamed ( Elsevier , 2008 , Article)
      The paper presents a new low cost and accurate method for determining the angle from sine and cosine signals produced by resolvers and sinusoidal encoders. In the proposed scheme, multiple phase-shifted sinusoids (PSS) are ...

    • Effects of Post and Early Selection on SEC Based Transmit Diversity Systems with Linear Power Loading 

      Hasna, M.O.; Yang, Hong-Chuan; Alouini, Mohamed-Slim ( IEEE , 2008 , Conference Paper)
      Switch and examine combing (SEC) diversity scheme provides a lowest-complexity closed-loop transmit diversity solution. Furthermore, by probing sequentially available branches with different power loading levels, the SEC ...

    • Comparison of relaying strategies for cooperative diversity systems with adaptive modulation 

      Choi, Seyeong; Alouini, M.-S.; Yang, Hong-Chuan; Hasna, M.O. ( IEEE , 2009 , Conference Paper)
      In this paper, we propose several relay selection schemes for cooperative diversity systems with adaptive transmission. The proposed schemes are based on dual-hop relaying with multiple relays. We analyze the performance ...

    • Performance of relay-assisted soft handover 

      Tourki K.; Alouini M.-S.; Hasna , Mazen ( IEEE , 2009 , Conference Paper)
      This paper examines the effect of relay-assisted soft handover on the performance of the uplink communication in the third generation mobile networks. We focus on users which are traveling over two cell boundaries in a ...

    • Development of a remote lab for electrical engineering program 

      Khalil A.; Hasna , Mazen; Benammar M.; Chaabane M.; Amar C.B. ( IEEE Computer Society , 2009 , Conference Paper)
      A remote lab for electrical engineering experiments has been designed and implemented. This has been intended as a platform that supports existing traditional labs by offering lab experiments that serve some of the student ...

    • User cooperation schemes in the soft handover regions 

      Tourki K.; Alouini M.-S.; Hasna , Mazen ( IEEE , 2009 , Conference Paper)
      This paper examines the effect of relay-assisted soft handover on the performance of the uplink communication in the third generation mobile networks. We focus on users which are traveling over two cell boundaries in a ...

    • Development of a remote lab for electrical engineering program 

      Khali A.; Hasna , Mazen; Benammar M.; Chaabane M.; Amar C.B. ( IEEE Computer Society , 2009 , Conference Paper)
      A remote lab for electrical engineering experiments has been designed and implemented. This has been intended as a platform that supports existing traditional labs by offering lab experiments that serve some of the student ...

    • Lifetime maximization for greedy selective relay strategies 

      Mousavifar, S.A.; Leung, C.; Khattab, T. (2009 , Conference Paper)
      In this paper we propose a new algorithm for selective relay strategies with Amplify-and-Forward (AF) relays which improves the relay network lifetime. The lifetime of the relay network is defined as the maximum number of ...

    • Lifetime maximization with predictive power management in selective relay networks 

      Mousavifar, S.A.; Khattab, T.; Leung, C. ( Institute of Electrical and Electronics Engineers Inc. , 2009 , Conference Paper)
      A diversity scheme which exploits the existence of a source-destination path to improve the lifetime and outage probability of a wireless selective relay network with Amplifyand-Forward (AF) relays is proposed and studied. ...

    • Novel linearizer for tangent/cotangent converter 

      Benammar, Mohieddine; Bagher, Mohamed; Al Kaisi, Mohammed ( 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, ...

    • A new closed-loop converter for sinusoidal encoders - Preliminary results 

      Ben-Brahim, Lazhar; Benammar, Mohieddine; Mahran, Ahmed; Alhomsi, Ahmed ( IEEE , 2009 , Conference Paper)
      Sinusoidal position transducers provide accurate and reliable representation of the mechanical position of their shafts. The sine/cosine transducers signals may be used in open loop or closed loop arrangements for the ...

    • A predictive strategy for lifetime maximization in selective relay networks 

      Mousavifar, S.A.; Khattab, T.; Leung, C. ( IEEE , 2009 , Conference Paper)
      Two algorithms based on an energy conserving dynamic transmit power threshold are proposed for improving the lifetime in relay networks utilizing selective relay strategies with amplify-and-forward (AF) relays. the lifetime ...

    • Chip-Level Modulated BPPM Fiber-Optic Code Division Multiple Access 

      Khattab, T.; Elkashlan, M.; Alnuweiri, H. ( IEEE , 2009 , Conference Paper)
      Chip-Level Modulated Binary Pulse Position Modulation (CLM-BPPM) is proposed as a modulation scheme for Fiber-Optic Code Division Multiple Access (FO-CDMA) systems using Optical Orthogonal Code (OOC) for time domain signal ...

    • R-wave detection: A comparative analysis of four methods using newborn piglet ECG 

      Shiying, D.; Fangfei, X.; Lingwood, B.; Mesbah, M.; Boashash, B. ( IEEE , 2010 , Conference Paper)
      In the electrocardiograph (ECG), R-wave is the positive upward deflection in the QRS complex which represents the depolarization of both left and right ventricles. Accurate detection of the R-wave peaks in the ECG plays a ...

    • Ordered clustering: A way to simplify analysis of multichannel signals 

      Rabiller, P.; Boles, P.; Boashash, B. ( IEEE , 2010 , Conference Paper)
      We describe here new possibilities offered by a clustering method routinely used by many petroleum companies and which could be used in other applications where analysis of multichannel signals has a significant role ...

    • Detection of neonatal seizure using multiple filters 

      Khlif, M.S.; Mesbah, M.; Boashash, Boualem; Colditz, P. ( IEEE , 2010 , Conference Paper)
      It is often impossible to accurately differentiate between seizure and non-seizure related activities in irifants based on clinical manifestations alone. The electroencephalogram (EEG) is therefore the best tool available ...

    • Detecting Fetal Movements Using Non-Invasive Accelerometers: A Preliminary Analysis 

      Girier, T.; O'Toole, J.; Mesbah, M.; Boashash, B.; Clough, I.; ... more authors ( IEEE , 2010 , Article)
      Monitoring fetal movement is important to assess fetal health. Standard clinical fetal monitoring technologies include ultrasound imaging and cardiotocography. Both have limited prognostic value and require significant ...

    • Investigation of inter-line dynamic voltage restorer with virtual impedance injection 

      Elserougi, A.; Hossam-Eldin, A.; Massoud, Ahmed; Ahmed, S. ( IEEE , 2010 , Conference Paper)
      The Inter-Line Dynamic Voltage Restorer (IDVR) consists of several voltage source inverters connected to different independent distribution feeders with common dc bus. When one of the inverters compensates for voltage sag ...

    • Capacitor voltage balancing using redundant states of space vector modulation for five-level diode clamped inverters 

      Hotait, H.A; Massoud, Ahmed; Finney, S. J.; Williams, B. W. ( IEEE , 2010 , Article)
      A redundancy balancing technique for the five-level diode-clamped inverter is presented, which balances the four dc-link capacitor voltages at high modulation index and high power factor. The technique is based on dividing ...