Title :
A novel SNR estimation algorithm for OFDM
Author :
Xu, Huilin ; Wei, Guo ; Zhu, Jinkang
Author_Institution :
Dept. of Electr. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, China
fDate :
30 May-1 June 2005
Abstract :
In this paper, we extend the traditional SNR estimation algorithms defined in complex AGWN channel to time variant linear channel and present a new SNR estimation algorithm for OFDM system. We compare our algorithm with two moment-based algorithms. Simulation results show that the new algorithm performs better in large Doppler frequency environments and is insensitive to the statistical characteristics of the channel.
Keywords :
AWGN; OFDM modulation; channel estimation; method of moments; time-varying channels; AGWN channel; Doppler frequency; OFDM; SNR estimation algorithm; moment-based algorithms; time variant linear channel; AWGN; Autocorrelation; Channel estimation; Fading; Frequency estimation; Information science; Maximum likelihood estimation; Mean square error methods; OFDM; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543911
