Doppler diversity for OFDM wireless mobile communications. Part I: Frequency domain approach

Byung Chul Kim, I. Tai Lu

Research output: Contribution to journalConference article

Abstract

A novel frequency domain Doppler diversity technique for OFDM systems is proposed. The received OFDM signal is first frequency shifted to generate various diversity branches. After demodulation, branch outputs are individually weighted and added together. For Doppler spread signal, it alters fading statistics and improves the bit error rate. Extensive simulations show that combining three diversity branches with proper frequency shifts reduces BER by an order when the normalized Doppler spread is larger than 0.3.

Original languageEnglish (US)
Pages (from-to)2677-2681
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume57
Issue number4
StatePublished - 2003
Event57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of
Duration: Apr 22 2003Apr 25 2003

ASJC Scopus subject areas

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

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