Joint weighted least squares estimation of frequency and timing offset for OFDM systems over fading channels

Pei Yun Tsai; Hsin Yu Kang; Tzi Dar Chiueh

Joint weighted least squares estimation of frequency and timing offset for OFDM systems over fading channels

Pei Yun Tsai
, Hsin Yu Kang
, Tzi Dar Chiueh

Department of Electrical Engineering

Research output: Contribution to journal › Conference article › peer-review

13 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	2543-2547
Number of pages	5
Journal	IEEE Vehicular Technology Conference
Volume	57
Issue number	4
State	Published - 2003
Event	57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of Duration: 22 Apr 2003 → 25 Apr 2003

Cite this

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title = "Joint weighted least squares estimation of frequency and timing offset for OFDM systems over fading channels",

abstract = "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 Cram{\'e}r-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.",

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T1 - Joint weighted least squares estimation of frequency and timing offset for OFDM systems over fading channels

AU - Tsai, Pei Yun

AU - Kang, Hsin Yu

AU - Chiueh, Tzi Dar

PY - 2003

Y1 - 2003

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0042469056

M3 - 會議論文

AN - SCOPUS:0042469056

SN - 0740-0551

VL - 57

SP - 2543

EP - 2547

JO - IEEE Vehicular Technology Conference

JF - IEEE Vehicular Technology Conference

IS - 4

T2 - 57th IEEE Semiannual Vehicular Technology Conference (VTC2003)

Y2 - 22 April 2003 through 25 April 2003

ER -

Joint weighted least squares estimation of frequency and timing offset for OFDM systems over fading channels

Abstract

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