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      Capacity bounds for an ultra-wideband channel model

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      Author
      Arıkan, Erdal
      Date
      2004-10
      Source Title
      2004 IEEE Information Theory Workshop - Proceedings, ITW
      Publisher
      IEEE
      Pages
      176 - 181
      Language
      English
      Type
      Conference Paper
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      Abstract
      There is an ongoing effort by the IEEE 802.15.3a subcommittee to reach a UWB personal area network standard. We estimate the achievable rates for such networks using a channel model specified by the same group. The analysis of this channel model is of interest in light of recent information-theoretic work on multipath fading channels which show that in order to take full advantage of such channels' capacity the transmitted signals have to be "peaky" in a certain sense. The immense bandwidth of the UWB channel also suggests at first that peaky signals should be used. However, unlike the many other wireless systems where the transmitter energy is limited, in the UWB channel only the power spectral density of the transmitted signal is constrained. As a result, the signal power can grow in proportion to the utilized bandwidth and peaky signals are not needed. © 2004 IEEE.
      Keywords
      Approximation theory
      Bandwidth
      Broadband networks
      Channel capacity
      Error analysis
      Estimation
      Fading (radio)
      Linear systems
      Mathematical models
      Multipath propagation
      Signal to noise ratio
      Capacity bounds
      Personal area network
      Power spectral density
      Ultra-wideband channel (UWB) model
      Communication channels (information theory)
      Permalink
      http://hdl.handle.net/11693/27425
      Published Version (Please cite this version)
      https://doi.org/10.1109/ITW.2004.1405295
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      • Department of Electrical and Electronics Engineering 3524
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