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  • On the achievable diversity orders over non-severely faded lognormal channels 
    Abou-Rjeily, Chadi; Bkassiny, Mario (2019-01-22)
    We propose to approximate the distribution of the sum of identically-distributed lognormal random variables by an Erlang distribution. The advantage of the proposed approximation over the lognormal and non-lognormal ...
  • On the Amplify-and-Forward Cooperative Diversity with Time-Hopping Ultra-Wideband Communications 
    Abou-Rjeily, Chadi; Daniele, N.; Belfiore, J.-C. (2016-02-16)
    In this paper, we extend the Amplify-and-Forward cooperative diversity scheme to the context of impulse radio ultra wideband (IR-UWB). In particular, we present the construction of three families of minimal-delay and ...
  • On the complexity of bilinear computations 
    Takche, Jean Halim (Pennsylvania State University, 2018-04-17)
    Arithmetic complexity theory is the study of the minimum number of non-scalar multiplications required to compute a set of bilinear forms. One can show that we can restrict ourselves to bilinear algorithms. Brockett and ...
  • On the complexity of multi-parameterized cluster editing 
    Abu-Khzam, Faisal (2018-04-23)
    The Cluster Editing problem seeks a transformation of a given undirected graph into a disjoint union of cliques via a minimum number of edge additions or deletions. A multi-parameterized version of the problem is studied, ...
  • On the complexity of QoS-Aware service selection problem 
    Abu-Khzam, Faisal N.; Bazgan, Cristina; El Haddad, Joyce; Sikora, Florian (Springer, 2017-03-16)
    This paper addresses the QoS-aware service selection problem considering complex workflow patterns. More specifically, it focuses on the complexity issues of the problem. The NPNP-hardness of the problem, under various ...
  • On the complexity of various parameterizations of common induced subgraph isomorphism 
    Abu-Khzam, Faisal N.; Bonnet, Edouard; Sikora, Florian (Springer, 2017-03-16)
    Maximum Common Induced Subgraph (henceforth MCIS) is among the most studied classical NPNP -hard problems. MCIS remains NPNP -hard on many graph classes including bipartite graphs, planar graphs and k-trees. Little is ...
  • On the compressive heating/cooling mechanism in thermal elastohydrodynamic lubricated contacts 
    Habchi, W.; Vergne, P. (2018-01-03)
    The importance of compressive heating/cooling occurring within lubricating films in thermal elastohydrodynamic lubricated contacts has not been given sufficient attention in the literature. This paper presents a numerical ...
  • On the Computations of Gas-Solid Mixture Two-Phase Flow 
    Touma, R.; Zeidan, D. (2016-04-07)
    This paper presents high-resolution computations of a two-phase gas-solid mixture using a well-defined mathematical model. The HLL Riemann solver is applied to solve the Riemann problem for the model equations. This ...
  • On the Convergence of the Collatz Conjecture Sequence 
    Saab, Samer S. (2024-04-05)
    The Collatz conjecture, also known as the 3n + 1 problem, is a famous unsolved problem in mathematics. This work converts the conjecture dynamics into its corresponding difference equation. To determine the boundedness of ...
  • "On the Death of my Dear Friend Nada Adib Haddad" 
    Aghacy, Samira (2016-11-14)
    She's dead, dead, and all the city, her city, weeps for her.
  • On the decode-and-forward cooperative diversity with coherent and non-coherent UWB systems 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (IEEE, 2017-06-08)
    In this paper, we extend the decode-and-forward cooperative diversity scheme to the context of impulse radio ultra-wideband (IR-UWB). We develop coherent and non-coherent schemes that exploit the spatial diversity in a ...
  • On the design of maximal-rate shape-preserving 2×2 and 3×3 space-time codes for noncoherent energy-detection-based PPM communications 
    Abou-Rjeily, Chadi (2018-11-26)
    In this paper, we propose novel 2×2 and 3×3 noncoherent space-time (ST) codes for impulse-radio ultra-wideband communications with pulse position modulation (PPM). The code design is based on existing coherent ST codes, ...
  • On the Detection of Passive Malicious Providers in Cloud Federations 
    Hammoud, Ahmad; Otrok, Hadi; Mourad, Azzam; Abdel Wahab, Omar; Bentahar, Jamal (2021-04-15)
    Cloud federation has emerged as a new business architecture which aims to help cloud providers cope with the increased waves of demands on their resources and services. Although plenty of solutions have been proposed trying ...
  • On the disk dimension of planar graphs 
    Abu-khzam, Faisal (2018-04-26)
    The disk dimension problem was introduced by Fellows and Langston in 1987. The disk dimension of a graph, G, is the least k for which G embeds in the plane minus k open disks, with every vertex of G on a boundary of one ...
  • On the dynamics of a spinning top under high-frequency excitation 
    Sheheitli, Hiba (2018-02-07)
    We investigate the dynamics of a spinning top whose pivot point undergoes a small amplitude high-frequency vertical vibration. The method of Direct Partition of Motion is used to obtain an autonomous equation governing the ...
  • On the dynamics of a spinning top under high-frequency excitation. 
    Sheheitli, Hiba (2018-02-07)
    We investigate the dynamics of a spinning top whose pivot point undergoes a small-amplitude high-frequency horizontal vibration. The method of direct partition of motion is used to obtain an autonomous two-degree-of-freedom ...
  • On the dynamics of systems with vastly different frequencies 
    Sheheitli, Hiba (Cornell University, 2018-02-07)
    The method of direct partition of motion (DPM) has been widely used to study the dynamics of non-autonomous oscillatory systems subject to external high frequency excitation. In this work, we explore the non-trivial dynamics ...
  • On the effects of user ratings on the profitability of cloud services 
    Taghavi, Mona; Bentahar, Jamal; Otrok, Hadi; Abdel Wahab, Omar; Mourad, Azzam (IEEE Xplore, 2018-08-14)
    In todays cloud market, providers are taking advantage of consumer reviews and ratings as a new marketing tool to establish their credibility. However, to achieve higher ratings, they need to enhance their service quality ...
  • On the error and outage performance of coherent UWB systems over indoor wireless channels 
    Abou-Rjeily, Chadi; Bkassiny, Mario (IEEE, 2017-06-08)
    In this paper, we propose an accurate method for evaluating the performance of Ultra-Wideband (UWB) coherent receivers over the IEEE 802.15.3a channel model. Depending on the severeness of fading, the method consists of ...
  • On the Issue of Oil. (c2017) 
    El-Chammas, Diana (Lebanese American University, 2018-03-06)
    Tensions between Lebanon and Israel have lately been on the rise due to the two countries’ opposing proposals for the delineation of their respective Exclusive Economic Zones (EEZ), and the resulting overlapping maritime ...