An ESPRIT-based approach for initial ranging in OFDMA systems

  title={An ESPRIT-based approach for initial ranging in OFDMA systems},
  author={Luca Sanguinetti and Michele Morelli and H. Vincent Poor},
  journal={2008 IEEE 9th Workshop on Signal Processing Advances in Wireless Communications},
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… CONTINUE READING
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