A sign-bit auto-correlation architecture for fractional frequency offset estimation in OFDM
(2010) IEEE International Symposium on Circuits and Systems (ISCAS), 2010 p.3765-3768- Abstract
- This paper presents an architecture of an auto-correlator for Orthogonal Frequency Division Multiplexing systems. The received signal is quantized to only the sign-bit, which dramatically simplifies the frequency offset estimation. Hardware cost is reduced under the assumption that synchronization during acquisition does not have to be very accurate, but sufficient for coarse estimation. The architecture is synthesized towards a 65nm low-leakage high threshold standard cell CMOS library. The proposed architecture results in area reduction of 93% if compared to typical 8-bit implementation. The area occupied by the architecture is 0.063mm^2. The architecture is evaluated for WLAN, LTE and DVB-H. Power simulations for DVB-H transmission... (More)
- This paper presents an architecture of an auto-correlator for Orthogonal Frequency Division Multiplexing systems. The received signal is quantized to only the sign-bit, which dramatically simplifies the frequency offset estimation. Hardware cost is reduced under the assumption that synchronization during acquisition does not have to be very accurate, but sufficient for coarse estimation. The architecture is synthesized towards a 65nm low-leakage high threshold standard cell CMOS library. The proposed architecture results in area reduction of 93% if compared to typical 8-bit implementation. The area occupied by the architecture is 0.063mm^2. The architecture is evaluated for WLAN, LTE and DVB-H. Power simulations for DVB-H transmission shows a power consumption of 4.8uW per symbol. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1529099
- author
- Diaz, Isael LU ; Wilhelmsson, Leif ; Rodrigues, Joachim LU ; Löfgren, Johan LU ; Olsson, Thomas and Öwall, Viktor LU
- organization
- publishing date
- 2010
- type
- Contribution to conference
- publication status
- published
- subject
- keywords
- frequency offset, DVB-H, WLAN, Sign-Bit, OFDM, LTE
- pages
- 4 pages
- conference name
- IEEE International Symposium on Circuits and Systems (ISCAS), 2010
- conference location
- Paris, France
- conference dates
- 2010-05-30 - 2010-06-02
- external identifiers
-
- wos:000287216003246
- scopus:77955995246
- project
- Radiosystem: Multibase (EU, VÖ/OE)
- language
- English
- LU publication?
- yes
- id
- fa2a23bc-2291-404f-9227-b05ab3bb7f50 (old id 1529099)
- date added to LUP
- 2016-04-04 13:43:31
- date last changed
- 2022-01-30 00:45:56
@misc{fa2a23bc-2291-404f-9227-b05ab3bb7f50, abstract = {{This paper presents an architecture of an auto-correlator for Orthogonal Frequency Division Multiplexing systems. The received signal is quantized to only the sign-bit, which dramatically simplifies the frequency offset estimation. Hardware cost is reduced under the assumption that synchronization during acquisition does not have to be very accurate, but sufficient for coarse estimation. The architecture is synthesized towards a 65nm low-leakage high threshold standard cell CMOS library. The proposed architecture results in area reduction of 93% if compared to typical 8-bit implementation. The area occupied by the architecture is 0.063mm^2. The architecture is evaluated for WLAN, LTE and DVB-H. Power simulations for DVB-H transmission shows a power consumption of 4.8uW per symbol.}}, author = {{Diaz, Isael and Wilhelmsson, Leif and Rodrigues, Joachim and Löfgren, Johan and Olsson, Thomas and Öwall, Viktor}}, keywords = {{frequency offset; DVB-H; WLAN; Sign-Bit; OFDM; LTE}}, language = {{eng}}, pages = {{3765--3768}}, title = {{A sign-bit auto-correlation architecture for fractional frequency offset estimation in OFDM}}, year = {{2010}}, }