An interference self-cancellation technique for SC-FDMA systems

Meng Ma*, Xiaojing Huang, Y. Jay Guo

*Corresponding author for this work

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A new interference self-cancellation (ISC) method for Single Carrier-FDMA (SC-FDMA) systems is proposed to mitigate the inter-user interference caused by frequency offset or Doppler effect. By transmitting a compensation symbol at the first symbol location in each resource block, the energy leakage can be significantly suppressed. With little bandwidth and power sacrifice, the proposed method can greatly improve the system robustness against frequency offset. Simulation results show that the signal-to-interference ratio (SIR) can be improved by 7 dB on average for the entire system band, and up to 11.7 dB for an individual user.

Original languageEnglish
Article number5474927
Pages (from-to)512-514
Number of pages3
JournalIEEE Communications Letters
Volume14
Issue number6
DOIs
Publication statusPublished - Jun 2010
Externally publishedYes

Keywords

  • Doppler effect
  • Interference suppression
  • Modulation

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