Sign-bit based architecture for OFDM acquisition for multiple-standards
Diaz I, Wilhelmsson L, Rodrigues J, Olsson T, Öwall V (2009)
Publication Type: Conference contribution
Publication year: 2009
Conference Proceedings Title: 2009 NORCHIP
Event location: NOR
ISBN: 9781424443109
DOI: 10.1109/NORCHP.2009.5397841
Abstract
This paper presents a hardware mapping of an autocorrelator 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 π/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 42μW. ©2009 IEEE.
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Sweden (SE)How to cite
APA:
Diaz, I., Wilhelmsson, L., Rodrigues, J., Olsson, T., & Öwall, V. (2009). Sign-bit based architecture for OFDM acquisition for multiple-standards. In 2009 NORCHIP. NOR.
MLA:
Diaz, Isael, et al. "Sign-bit based architecture for OFDM acquisition for multiple-standards." Proceedings of the 2009 NORCHIP, NOR 2009.
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