Sign-Bit based architecture for OFDM acquisition for multiple-standards
(2009) Norchip Conference, 2009- Abstract
- This paper presents a hardware mapping of an auto-correlator for Orthogonal Frequency Division Multiplexing stage for three radio standards: LTE, DVB-H, and IEEE 802.11n. Hardware cost is minimized by using only the sign bit in the autocorrelation function. The frequency offset estimation procedure is dramatically simplified by reducing the phase of the envelope to pi/2 resolution, which in turn reduces the need of specialized components. The architecture is synthesized towards a 65 nm low-leakage high threshold standard cell CMOS library. The 1-bit architecture reports an area reduction of 90% for memories, 56% for the logic and a power dissipation reduction of 35%, when compared to an identical 8-bit implementation. The approximate area... (More)
- This paper presents a hardware mapping of an auto-correlator for Orthogonal Frequency Division Multiplexing stage for three radio standards: LTE, DVB-H, and IEEE 802.11n. Hardware cost is minimized by using only the sign bit in the autocorrelation function. The frequency offset estimation procedure is dramatically simplified by reducing the phase of the envelope to pi/2 resolution, which in turn reduces the need of specialized components. The architecture is synthesized towards a 65 nm low-leakage high threshold standard cell CMOS library. The 1-bit architecture reports an area reduction of 90% for memories, 56% for the logic and a power dissipation reduction of 35%, when compared to an identical 8-bit implementation. The approximate area occupied by the architecture is 0.03mm^2. Power simulations for IEEE 802.11n packet reports a power dissipation of 42uW. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1511415
- author
- Diaz, Isael LU ; Wilhelmsson, Leif ; Rodrigues, Joachim LU ; Olsson, Thomas and Öwall, Viktor LU
- organization
- publishing date
- 2009
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- WLAN, DVB-H, LTE, multi-standard, Acquisition, Synchronization, VLSI, OFDM
- host publication
- [Host publication title missing]
- pages
- 4 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- Norchip Conference, 2009
- conference location
- Trondheim, Norway
- conference dates
- 2009-11-16 - 2009-11-17
- external identifiers
-
- scopus:77949635523
- ISBN
- 978-1-4244-4310-9
- DOI
- 10.1109/NORCHP.2009.5397841
- project
- Radiosystem: Multibase (EU, VÖ/OE)
- language
- English
- LU publication?
- yes
- id
- 63d2b80b-4353-4823-a313-d051886f5370 (old id 1511415)
- date added to LUP
- 2016-04-04 12:13:07
- date last changed
- 2022-01-29 23:08:44
@inproceedings{63d2b80b-4353-4823-a313-d051886f5370, abstract = {{This paper presents a hardware mapping of an auto-correlator for Orthogonal Frequency Division Multiplexing stage for three radio standards: LTE, DVB-H, and IEEE 802.11n. Hardware cost is minimized by using only the sign bit in the autocorrelation function. The frequency offset estimation procedure is dramatically simplified by reducing the phase of the envelope to pi/2 resolution, which in turn reduces the need of specialized components. The architecture is synthesized towards a 65 nm low-leakage high threshold standard cell CMOS library. The 1-bit architecture reports an area reduction of 90% for memories, 56% for the logic and a power dissipation reduction of 35%, when compared to an identical 8-bit implementation. The approximate area occupied by the architecture is 0.03mm^2. Power simulations for IEEE 802.11n packet reports a power dissipation of 42uW.}}, author = {{Diaz, Isael and Wilhelmsson, Leif and Rodrigues, Joachim and Olsson, Thomas and Öwall, Viktor}}, booktitle = {{[Host publication title missing]}}, isbn = {{978-1-4244-4310-9}}, keywords = {{WLAN; DVB-H; LTE; multi-standard; Acquisition; Synchronization; VLSI; OFDM}}, language = {{eng}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Sign-Bit based architecture for OFDM acquisition for multiple-standards}}, url = {{http://dx.doi.org/10.1109/NORCHP.2009.5397841}}, doi = {{10.1109/NORCHP.2009.5397841}}, year = {{2009}}, }