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      • Department of Electrical and Electronics Engineering
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      Ultra-wideband orthogonal pulse shape set design by using Hermite-Gaussian functions

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      Author(s)
      Alp, Yaşar Kemal
      Dedeoǧlu, Mehmet
      Arıkan, Orhan
      Date
      2012
      Source Title
      2012 20th Signal Processing and Communications Applications Conference (SIU)
      Publisher
      IEEE
      Language
      Turkish
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      Ultra-Wideband (UWB) communication systems have been developed for short distance, high data rate communications. To avoid interfering with the existing systems in the same environment, very short duration pulses used by these systems should satisfy a predefined spectral mask. Data rate of UWB systems can be increased by using multiple pulse shapes simultaneously. Orthogonality of the simultaneously used pulse shapes simplifies the receiver design. In this work, design of orthogonal pulse shapes which satisfy the spectral mask is modelled as an optimization problem. First, it is converted to a convex optimization problem by constraining the pulse shapes to lie in a subspace spanned by the Hermite-Gaussian (HG) functions. Then the optimal solution is obtained. It is shown that a larger pulse shape set can be designed compared to the existing approaches, and hence, a higher data rate can be achieved. © 2012 IEEE.
      Keywords
      Convex optimization problems
      Data rates
      Existing systems
      Hermite-Gaussian function
      High data rate communications
      Multiple pulse
      Optimal solutions
      Optimization problems
      Orthogonal pulse
      Orthogonality
      Pulse shapes
      Receiver design
      Short distances
      Short duration pulse
      Spectral masks
      Ultra wideband communication systems
      UWB system
      Broadband networks
      Convex optimization
      Design
      Signal processing
      Telecommunication systems
      Ultra-wideband (UWB)
      Permalink
      http://hdl.handle.net/11693/28201
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/SIU.2012.6204491
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      • Department of Electrical and Electronics Engineering 3702
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