This paper presents an algorithm for joint estimation of carrier frequency offset and timing frequency offset in orthogonal frequency division multiplexing (OFDM) systems. A weighted least squares algorithm based on a pilot-aided scheme is proposed. The algorithm operates near the Cramér-Rao bound in the variance of estimation errors. Simulations of several estimation algorithms in a multipath fading channel show that this algorithm provides the most accurate estimation in both the carrier frequency offset and the timing frequency offset.
|Number of pages||5|
|Journal||IEEE Vehicular Technology Conference|
|State||Published - 2003|
|Event||57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of|
Duration: 22 Apr 2003 → 25 Apr 2003