Analysis of a novel low complex SNR estimation technique for OFDM systems
Publikation/Tidskrift/Serie: IEEE Wireless Communications and Networking Conference (WCNC)
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.
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.
- Electrical Engineering, Electronic Engineering, Information Engineering
- SNR estimation
- Signal to Noise Ratio
- Radiosystem: Multibase (EU, VÖ/OE)
- Digital ASIC-lup-obsolete
- ISBN: 978-1-61284-254-7