Adaptive raised-cosine channel interpolation for pilot-aided OFDM systems

Pei Yun Tsai, Tzi Dar Chiueh

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

In this paper, we first show equivalence of OFDM channel estimation using time-domain windowing and using frequency-domain interpolation. Based on this equivalence, a new frequency-domain channel interpolator featuring the advantage of time-domain channel impulse response windowing is proposed. Furthermore, the proposed raised-cosine channel interpolator can adaptively adjust its coefficients to accommodate various channel power delay profiles. Both theoretical and simulation results verify that the proposed interpolator achieves more accurate channel estimation performance than other existing solutions.

Original languageEnglish
Article number4786465
Pages (from-to)1028-1037
Number of pages10
JournalIEEE Transactions on Wireless Communications
Volume8
Issue number2
DOIs
StatePublished - Feb 2009

Keywords

  • Channel estimation
  • Interpolation
  • Orthogonal frequency division multiplex
  • Pilot-based

Fingerprint

Dive into the research topics of 'Adaptive raised-cosine channel interpolation for pilot-aided OFDM systems'. Together they form a unique fingerprint.

Cite this