An ESPRIT-based approach for initial ranging in OFDMA systems

Luca Sanguinetti, Michele Morelli, H. Vincent Poor

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

In this letter, an initial ranging scheme for orthogonal frequency-division multiple-access systems is proposed by which users that intend to establish a communication link with the base station (BS) perform spreading in both the time and frequency domains and their synchronization parameters are estimated at the BS in closed-form using the ESPRIT algorithm. Compared to existing alternatives, the resulting scheme exhibits increased robustness against residual frequency offsets without involving computationally demanding peak search procedures.

Original languageEnglish (US)
Article number5336841
Pages (from-to)3225-3229
Number of pages5
JournalIEEE Transactions on Communications
Volume57
Issue number11
DOIs
StatePublished - Nov 1 2009

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • ESPRIT algorithm
  • Initial ranging
  • OFDMA
  • Power estimation
  • Uplink synchronization

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