Advanced

Performance evaluation of impulse radio UWB systems with pulse-based polarity randomization

Gezici, S; Kobayashi, H; Poor, HV and Molisch, Andreas LU (2005) In IEEE Transactions on Signal Processing 53(7). p.2537-2549
Abstract
In this paper, the performance of a binary phase shift keyed random time-hopping impulse radio system with pulse-based polarity randomization is analyzed. The effects of interframe interference and multiple-access interference on the performance of a generic Rake receiver are investigated for asynchronous systems in frequency-selective environments. A key step is to model the asynchronous system as a chip-synchronous system with uniformly distributed timing jitter for the transmitted pulses of interfering users. This model allows the analytical technique developed for the synchronous case to be extended to the asynchronous case and allows the derivation of closed-form equations for the bit error probability in various Rake receiver... (More)
In this paper, the performance of a binary phase shift keyed random time-hopping impulse radio system with pulse-based polarity randomization is analyzed. The effects of interframe interference and multiple-access interference on the performance of a generic Rake receiver are investigated for asynchronous systems in frequency-selective environments. A key step is to model the asynchronous system as a chip-synchronous system with uniformly distributed timing jitter for the transmitted pulses of interfering users. This model allows the analytical technique developed for the synchronous case to be extended to the asynchronous case and allows the derivation of closed-form equations for the bit error probability in various Rake receiver architectures. It is shown that a Gaussian approximation can be used for both multiple-access and interframe interference as long as the number of frames per symbols is large (typically, at least 5), whereas there is no minimum requirement for the number of users for the equations to hold. It is observed that under many circumstances, the chip-synchronous case shows a worse bit error probability performance than the asynchronous case; the amount of the,difference depends on the autocorrelation function of the ultra-wideband pulse and the signal-to-interference-plus-noise-ratio of the system. Simulations studies support the approximate analysis. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Rake receivers, interference (MAI), multiple-access, impulse radio (IR), interframe interference (IFI), ultra-wideband (UWB)
in
IEEE Transactions on Signal Processing
volume
53
issue
7
pages
2537 - 2549
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000230216800025
  • scopus:23844474065
ISSN
1053-587X
DOI
10.1109/TSP.2005.849197
language
English
LU publication?
yes
id
75fd9451-f394-470c-aec5-5d831ff1d4d5 (old id 233483)
date added to LUP
2007-08-22 09:28:40
date last changed
2017-11-12 03:59:53
@article{75fd9451-f394-470c-aec5-5d831ff1d4d5,
  abstract     = {In this paper, the performance of a binary phase shift keyed random time-hopping impulse radio system with pulse-based polarity randomization is analyzed. The effects of interframe interference and multiple-access interference on the performance of a generic Rake receiver are investigated for asynchronous systems in frequency-selective environments. A key step is to model the asynchronous system as a chip-synchronous system with uniformly distributed timing jitter for the transmitted pulses of interfering users. This model allows the analytical technique developed for the synchronous case to be extended to the asynchronous case and allows the derivation of closed-form equations for the bit error probability in various Rake receiver architectures. It is shown that a Gaussian approximation can be used for both multiple-access and interframe interference as long as the number of frames per symbols is large (typically, at least 5), whereas there is no minimum requirement for the number of users for the equations to hold. It is observed that under many circumstances, the chip-synchronous case shows a worse bit error probability performance than the asynchronous case; the amount of the,difference depends on the autocorrelation function of the ultra-wideband pulse and the signal-to-interference-plus-noise-ratio of the system. Simulations studies support the approximate analysis.},
  author       = {Gezici, S and Kobayashi, H and Poor, HV and Molisch, Andreas},
  issn         = {1053-587X},
  keyword      = {Rake receivers,interference (MAI),multiple-access,impulse radio (IR),interframe interference (IFI),ultra-wideband (UWB)},
  language     = {eng},
  number       = {7},
  pages        = {2537--2549},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Signal Processing},
  title        = {Performance evaluation of impulse radio UWB systems with pulse-based polarity randomization},
  url          = {http://dx.doi.org/10.1109/TSP.2005.849197},
  volume       = {53},
  year         = {2005},
}