Time-Varying Channel Estimation for OFDM Systems with Superimposed Training and Basis Expansion Model

Han Zhang; Shan Gao; Qinghua Zhong; Xianhua Dai

doi:10.1109/wicom.2011.6040058

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Time-Varying Channel Estimation for OFDM Systems with Superimposed Training and Basis Expansion Model

Han Zhang Shan Gao Qinghua Zhong Xianhua Dai

Year: 2011 Vol: 1 Pages: 1-3

DOI: 10.1109/wicom.2011.6040058

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Abstract

An approach of superimposed training (ST) aided time-varying (TV) channel estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems is presented. By modeling the channel as complex exponential bases, channel estimation is adopted over multiple OFDM symbols by using a sequence of data-dependent ST signal. Simulations illustrate the proposed channel estimator achieves a satisfactory estimation performance under a wide range of Doppler shift.

Keywords:

Orthogonal frequency-division multiplexing Estimator Channel (broadcasting) Computer science Doppler effect Algorithm SIGNAL (programming language) Range (aeronautics) Basis (linear algebra) Electronic engineering Telecommunications Mathematics Statistics Engineering

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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

Time-Varying Channel Estimation for OFDM Systems with Superimposed Training and Basis Expansion Model

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