Subspace based OFDM carrier offset estimation algorithm in model mismatch

Tureli U., KIVANÇ TÜRELİ D., Liu H.

34th Asilomar Conference, Pacific Grove, CA, United States Of America, 29 October - 01 November 2000, vol.1, pp.264-267, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1
  • City: Pacific Grove, CA
  • Country: United States Of America
  • Page Numbers: pp.264-267
  • Yıldız Technical University Affiliated: Yes

Abstract

In this paper, we develop a blind subspace based carier offset estimator for orthogonal frequency division multiplexing (OFDM) on channels with support exceeding the cyclic prefix length. The algorithm is particularly suited for uplink synchronization where the combination of asynchronism, propagation delays and multipath effects may result in channel support longer than the cyclic prefix. Simulation results demonstrate the robustness of the carrier offset estimation algorithm in a practical OFDM system.