A channel estimation scheme with co-phased pilot-signals for multi-carrier modulation

Yoshimasa Egashira, Osamu Muta, Yoshihiko Akaiwa

Research output: Contribution to journalConference article

Abstract

In this paper, we propose a frequency-domain channel estimation scheme using co-phased pilot-signals for a multi-carrier modulation (MCM) system with bandlimited subcarriers: pilot signals are inserted periodically in each subcarrier and are added up (multiplexed) to be in-phase at the midpoint of the pilot-symbol duration at the transmitter. Then, the multiplexed pilot signal exhibits a sharp peak amplitude at the midpoint of the pilot-symbol duration. Thus, the channel characteristics can be estimated with a high time resolution of the pilot signal. We evaluated the performance of an MCM system with a frequency-domain equalizer using the proposed scheme by computer simulation. The BER performance was improved with the channel estimation scheme.

Original languageEnglish
Pages (from-to)1374-1378
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume3
Publication statusPublished - Jan 1 2002
Event55th Vehicular Technology Conference - Birmingham, AL, United States
Duration: May 6 2002May 9 2002

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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