z-logo
open-access-imgOpen Access
Low-complexity time-domain SNR estimation for OFDM systems
Author(s) -
Ayesha Ijaz,
Adegbenga Awoseyila,
B.G. Evans
Publication year - 2011
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2011.2014
Subject(s) - orthogonal frequency division multiplexing , estimator , preamble , fading , algorithm , frequency domain , signal to noise ratio (imaging) , computer science , time domain , channel (broadcasting) , signal (programming language) , computational complexity theory , electronic engineering , mathematics , telecommunications , statistics , engineering , computer vision , programming language
A low-complexity signal-to-noise ratio (SNR) estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems in frequency-selective fading channels is proposed. The estimator is based on a conventional preamble having two identical parts. It uses the correlation of the received signal samples to estimate signal power while noise power is estimated using the difference between received samples. Simulation results show that the proposed estimator is robust to the channel's frequency selectivity and its attained accuracy and reduced complexity make it an attractive choice for current wireless OFDM systems.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom