Frequency synchronization for OFDM systems over doubly-selective channels

Jianwu Chen; Yik‐Chung Wu; Tung-Sang Ng

doi:10.1109/apccas.2008.4746090

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Frequency synchronization for OFDM systems over doubly-selective channels

Jianwu Chen Yik‐Chung Wu Tung-Sang Ng

Year: 2008 Vol: 45 Pages: 582-585

DOI: 10.1109/apccas.2008.4746090

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Abstract

In this paper, we investigate the problem of carrier frequency offset (CFO) estimation for Orthogonal frequency division multiplexing (OFDM) system over doubly-selective channels. Representing the doubly-selective channels with basis expansion, the signal model is reformulated and one CFO estimator is derived. Furthermore, the Cramér-Rao bound (CRB) for the estimation problem is derived in closed form. The effectiveness of the proposed scheme is verified by simulations. © 2008 IEEE.

Keywords:

Orthogonal frequency-division multiplexing Carrier frequency offset Estimator Cramér–Rao bound Frequency offset Synchronization (alternating current) Computer science Multiplexing Algorithm Frequency-division multiplexing SIGNAL (programming language) Control theory (sociology) Estimation theory Mathematics Telecommunications Channel (broadcasting) Statistics Artificial intelligence

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Advanced Wireless Communication Techniques

Physical Sciences → Engineering → Electrical and Electronic Engineering

Wireless Communication Networks Research

Physical Sciences → Computer Science → Computer Networks and Communications

PAPR reduction in OFDM

Physical Sciences → Engineering → Electrical and Electronic Engineering

Frequency synchronization for OFDM systems over doubly-selective channels

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