Extended abstract: Estimation and compensation of Doppler effect in UAC OFDM systems

Ahmed S., ARSLAN H.

6th ACM International Workshop on Underwater Networks, WUWNet'11, Seattle, WA, Amerika Birleşik Devletleri, 1 - 02 Aralık 2011 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1145/2076569.2076585
  • Basıldığı Şehir: Seattle, WA
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

Doppler effect causes loss of orthogonality in Orthogonal Frequency Division Multiplexing (OFDM), which in turn may severely degrade receiver performance. In high data rate underwater acoustic communication (UAC) systems, the effect of Doppler varies considerably over OFDM band. This research presents an algorithm to avoid and/or to compensate the effect of varying Doppler shift over OFDM sub- carriers in order to maintain orthogonality and/or to compensate loss of orthogonality. Copyright 2011 ACM.