Performance evaluation of ultra wideband-impulse radio (UWB-IR) with iterative equalization based on energy spreading transform (EST)

K. Kobayashi, T. Ohtsuki, T. Kaneko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

UWB-IR uses extreme short pulses and has the advantage of extremely high path resolutions. However, multipath is spread over dozens of symbols in the case of ultra highspeed communications of several hundreds Mbps, which causes the strong frequency selective channel and makes intersymbol interference (ISI) strongly influence it. As a result, the transmission performance degrades. Meanwhile, iterative equalization that uses energy spreading transform (EST) is proposed as an equalization method that decreases the influence of ISI. The performance of iterative equalization based on EST is evaluated with QPSK modulation on the Proakis-B channel. However, the performance of UWB-IR in UWB channel with iterative equalization based on EST has not been clarified. In this paper, we evaluate the bit error rate (BER) of UWB-IR with iterative equalization based on EST in UWB channel and compare it to that of UWB-IR with minimum mean square error (MMSE)-frequency domain equalization (FDE) and iterative equalization without EST. As a result, we show that UWB-IR with iterative equalization based on EST can achieve the better BER than UWB-IR with MMSE-FDE and UWB-IR with iterative equalization without EST.

Original languageEnglish
Title of host publicationVTC 2005-Fall
Subtitle of host publicationMid Way Through the Decade - Technology Past, Present and Future
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages996-1000
Number of pages5
ISBN (Electronic)0780391527
DOIs
Publication statusPublished - 2005 Jan 1
Event62nd Vehicular Technology Conference, VTC 2005 - Dallas, United States
Duration: 2005 Sep 252005 Sep 28

Publication series

NameIEEE Vehicular Technology Conference
Volume2
ISSN (Print)1550-2252

Other

Other62nd Vehicular Technology Conference, VTC 2005
CountryUnited States
CityDallas
Period05/9/2505/9/28

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ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Kobayashi, K., Ohtsuki, T., & Kaneko, T. (2005). Performance evaluation of ultra wideband-impulse radio (UWB-IR) with iterative equalization based on energy spreading transform (EST). In VTC 2005-Fall: Mid Way Through the Decade - Technology Past, Present and Future (pp. 996-1000). [1558075] (IEEE Vehicular Technology Conference; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VETECF.2005.1558075