Analysis of a novel low complex SNR estimation technique for OFDM systems
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, a...
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| creator | Wilhelmsson, L Diaz, I Olsson, T Owall, V |
| description | 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. |
| doi_str_mv | 10.1109/WCNC.2011.5779382 |
| format | Conference Proceeding |
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| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 1525-3511 |
| ispartof | 2011 IEEE Wireless Communications and Networking Conference, 2011, p.1646-1651 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Channel estimation Correlators Electrical Engineering, Electronic Engineering, Information Engineering Elektroteknik och elektronik Engineering and Technology Estimation Frequency estimation OFDM Sign-Bit Signal to Noise Ratio SNR estimation Teknik |
| title | Analysis of a novel low complex SNR estimation technique for OFDM systems |
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