Bandwidth Issues White Papers
Noise Power and SNR Estimation for OFDM Based Wireless Communication Systems
Overview In this paper, noise power and Signal-to-Noise Ratio (SNR) estimations for OFDM based wireless communication systems are studied. Noise power estimation, which takes into account the color and variation of noise statistics over OFDM sub-carriers into account, is considered. Instead of averaging the instantaneous noise samples estimates over all of the OFDM sub-carriers, dividing the total number of sub-carriers into several sub-groups and averaging the sub-carriers separately within each sub-group is proposed. The proposed solution provides many local estimates, allowing tracking of the variation of the noise statistics across OFDM sub-carriers, which are particularly of use in sub-band adaptive modulation OFDM systems.
| Publisher | University of South Florida | File Format | |
|---|---|---|---|
| Date Published | May 2003 | Downloads | 3 |
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful?
White Paper RSS
Download
Register
