A simple and effective SNR estimation algorithm for OFDM in Rayleigh Fading Channels

Author

Li, Jiangang ; Tang, Wanbin ; Li, Shaoqian ; Wei, Bo

Author_Institution

Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2009

fDate

8-10 Dec. 2009

Firstpage

1

Lastpage

4

Abstract

Adaptive modulation and code (AMC) in Orthogonal Frequency Division Multiplexing (OFDM) is a promising approach to achieve higher data rates with sufficient performance. However a measure of channel state is desired in order to decide upon transition rates and modulation mode. SNR is such a sufficient measure. In this work, a channel estimator based on transform domain algorithm (TFD) is presented firstly; then a novel SNR estimation algorithm for OFDM in Rayleigh fading channels is proposed, which is proved simple and effective by theoretical analysis and computer simulation.

Keywords

OFDM modulation; Rayleigh channels; adaptive codes; channel estimation; OFDM; Rayleigh fading channel; SNR estimation algorithm; adaptive code; adaptive modulation; channel estimator; orthogonal frequency division multiplexing; transform domain algorithm; AWGN channels; Algorithm design and analysis; Bit rate; Computer simulation; Fading; Frequency estimation; Intersymbol interference; Laboratories; Modulation coding; OFDM modulation; MMSE; OFDM; SNR Estimation; transform domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2009. ICICS 2009. 7th International Conference on

Conference_Location

Macau

Print_ISBN

978-1-4244-4656-8

Electronic_ISBN

978-1-4244-4657-5

Type

conf

DOI

10.1109/ICICS.2009.5397695

Filename

5397695