Effect of imperfect channel estimation on the performance of UWB-IR with Frequency-Domain Equalization (FDE) and Cyclic Prefix (CP) reconstruction

Shintaro Yoshida, Tomoaki Ohtsuki

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

3 Citations (Scopus)

Abstract

In recent years, an Ultra Wideband (UWB) system has attracted much attention in short range high speed wireless communications. Meanwhile, the single-carrier transmission with frequency domain equalization (SC-FDE) is also attracting much attention. It is reported that the SC-FDE system obtains an excellent performance as well as orthogonal frequency division multiplexing (OFDM), because the SC-FDE system has the advantage of frequency diversity gain even in strong frequency selective channels. However, in the SC-FDE system, cyclic extension reduces the bandwidth efficiency. To improve the bandwidth efficiency, we proposed UWB-IR and DS-UWB with Frequency-Domain Equalization (FDE) and Cyclic Prefix (CP) reconstruction, and showed that when the channel estimation is ideal, the proposed system achieves the good performance. Both FDE and CP reconstruction use channel gains and thus the performance is expected to depend largely on the channel estimation accuracy. In this paper, we evaluate the effect of imperfect channel estimation on the performance of UWB-IR with MMSE-FDE and CP Reconstruction. We show that CP reconstruction is effective for UWB-IR with MMSE-FDE in the IEEE UWB multipath channels, CM3, CM4.

Original languageEnglish
Title of host publicationIEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings
Pages342-345
Number of pages4
DOIs
Publication statusPublished - 2007
Event2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, PACRIM - Victoria, BC, Canada
Duration: 2007 Aug 222007 Aug 24

Other

Other2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, PACRIM
CountryCanada
CityVictoria, BC
Period07/8/2207/8/24

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ASJC Scopus subject areas

  • Signal Processing

Cite this

Yoshida, S., & Ohtsuki, T. (2007). Effect of imperfect channel estimation on the performance of UWB-IR with Frequency-Domain Equalization (FDE) and Cyclic Prefix (CP) reconstruction. In IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings (pp. 342-345). [4313244] https://doi.org/10.1109/PACRIM.2007.4313244