ISI-Free block transceivers for unknown frequency selective channels

Chih Hao Liu*, See May Phoong, Yuan-Pei Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The orthogonal frequency-division multiplexing (OFDM) transceiver has enjoyed great success in many wideband communication systems. It has low complexity and robustness against channel-induced intersymbol interference (ISI). When the channel order does not exceed the length of cyclic prefix, any frequency-selective channel is converted to a set of frequency-nonselective subchannels. This channel-independent ISI-free property is useful for many applications. In this correspondence, we study general block transceiver with such a property. We will show that the solutions of channel-independent ISI-free block transceivers are given in a closed form. It is found that except for some special cases, the solutions are identical to the Lagrange-Vandermonde and Vandermonde-Lagrange transceivers.

Original languageEnglish
Pages (from-to)1564-1567
Number of pages4
JournalIEEE Transactions on Signal Processing
Issue number4
StatePublished - 1 Apr 2007


  • Filter bank
  • Multicarrier
  • Multitone
  • Orthogonal frequency-division multiplexing (OFDM)
  • Transceiver
  • Transmultiplexer

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