Equalization of OSDM over time-varying channels based on diagonal-block-banded matrix enhancement

Jing Han, Yujie Wang, Zehui Gong, Geert Leus

Research output: Contribution to journalArticleScientificpeer-review

3 Downloads (Pure)


Orthogonal signal-division multiplexing (OSDM) has recently emerged as a promising alternative to orthogonal frequency division multiplexing (OFDM) for high-rate wireless communications. Although providing more flexibility in system design, it suffers from a special interference structure, namely inter-vector interference (IVI), when channel time variations are present. In this paper, we first derive the general OSDM signal model over time-varying channels, and then show that a time-domain window can be used to enhance the diagonal-block-banded (DBB) approximation of the channel matrix in a transformed domain. Furthermore, based on the DBB matrix enhancement, a low-complexity OSDM equalization algorithm is designed. Simulation results indicate that the proposed equalizer has significant performance advantages over that using the direct DBB approximation.

Original languageEnglish
Article number107333
Pages (from-to)1-6
Number of pages6
JournalSignal Processing
Publication statusPublished - 2020

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


  • Equalization
  • Inter-vector interference
  • OSDM
  • Time-varying channel
  • Underwater acoustic communication


Dive into the research topics of 'Equalization of OSDM over time-varying channels based on diagonal-block-banded matrix enhancement'. Together they form a unique fingerprint.

Cite this