Abstract
Signal-to-noise ratio (SNR) estimation is commonly used in wireless receivers to enhance the performance in different ways. In this paper a novel low complexity SNR estimator for OFDM is proposed. The estimator might be implemented using floating point representation or by using only the sign-bit, and can if desired be effectively implemented by reconfiguring the standard correlator used for time- and frequency estimation. Closed form expressions for the SNR estimate are derived for both the floating point implementation and the sign-bit implementation, and compared to simulation results both for an additive white Gaussian noise (AWGN) channel and for a frequency selective channel showing the feasibility of the proposed algorithm.
| Original language | English |
|---|---|
| Title of host publication | IEEE Wireless Communications and Networking Conference (WCNC) |
| Publisher | IEEE - Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1646-1651 |
| Number of pages | 4 |
| ISBN (Print) | 978-1-61284-254-7 |
| Publication status | Published - 2011 |
| Event | WCNC 2011 - Cancun Duration: 2011 Mar 30 → … |
Conference
| Conference | WCNC 2011 |
|---|---|
| Period | 2011/03/30 → … |
Subject classification (UKÄ)
- Electrical Engineering, Electronic Engineering, Information Engineering
Free keywords
- OFDM
- SNR estimation
- Signal to Noise Ratio
- Sign-Bit