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Browsing by Author "Daniele, Norbert"

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Browsing by Author "Daniele, Norbert"

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  • Amplify-and-forward cooperative diversity with space-time coded UWB systems 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (IEEE, 2017-06-08)
    In this paper, we examine the impact of spatial diversity on ultra-wideband (UWB) systems. This diversity is exploited by deploying two antennas at the UWB terminals. For single-antenna systems, spatial diversity is exploited ...
  • Distributed algebraic space-time codes for ultra-wideband communications 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (2017-04-07)
    In this paper, we extend the Amplify-and-Forward cooperative diversity scheme to the context of impulse radio ultra-wideband. In particular, we present the construction of two families of distributed algebraic space-time ...
  • Distributed Space-Time coding with ultra-wideband systems 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (IEEE, 2017-06-08)
    In this paper, we extend the amplify-and-forward (AF) cooperative diversity scheme to the context of impulse radio ultra wideband (IR-UWB). In particular, we apply a space-time (ST) coding scheme based on totally-real ...
  • Diversity-multiplexing tradeoff of single-antenna and multi-antenna indoor ultra-wideband channels 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (IEEE, 2017-06-08)
    In this paper, we study the achievable diversity-multiplexing gain (D-MG) tradeoffs over the IEEE 802.15.3a channel model. In particular, we give an exact expression of the D-MG tradeoff for single antenna systems. This ...
  • MIMO UWB Communications Using Modified Hermite Pulses 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (IEEE, 2017-06-08)
    In this paper, we present a new full rate scheme for exploiting diversity in multi-antenna ultra-wideband (UWB) systems. The independent data streams that are transmitted simultaneously from the different antennas are ...
  • A new family of Space-Time codes for pulse amplitude and position modulated UWB systems 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (IEEE, 2017-06-08)
    This paper presents the construction of new totally-real space-time coding schemes suited for carrier-less ultra-wideband transmissions. These schemes are associated with pulse position modulation and with hybrid pulse ...
  • 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 ...
  • An optimal 2 × 2 space-time code for time-hopping ultra-wideband systems with binary pulse position modulation 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (IEEE, 2017-06-12)
    The golden code (Belfiore, 2005) is a 2 x 2 space-time (ST) code that achieves the best known performance with all constellations carved from Zopf[i]. On the other hand, impulse radio (IR) time-hopping (TH) ultra wideband ...
  • Performance of MIMO UWB systems with biorthogonal pulse position modulation 
    Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude (IEEE, 2017-06-07)
    In this paper, we evaluate the performance of Multiple Input Multiple Output (MIMO) Ultra-Wideband (UWB) systems over the IEEE 802.15.3a channel model recommendation [1]. Two schemes are considered, namely a Space-Time ...
  • UWB SIMO channel measurements and simulations 
    Keignart, Julien; Abou-Rjeily, Chadi; Delaveaud, Christophe; Daniele, Norbert (2017-04-26)
    Ultra-wideband (UWB) technology has recently attracted the entire wireless community with its great potential for short-range and high data-rate communications. On the other hand, multiantenna (or multiple-input multiple-output) ...