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Low-Power Correlation for IEEE 802.16 OFDM Synchronization on FPGA

Pham, Thinh H., Fahmy, Suhaib A., McLoughlin, Ian Vince (2012) Low-Power Correlation for IEEE 802.16 OFDM Synchronization on FPGA. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, . pp. 1549-1553. ISSN 1063-8210. (doi:10.1109/TVLSI.2012.2210917) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:48891)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1109/TVLSI.2012.2210917

Abstract

This brief compares the use of multiplierless and DSP slice-based cross-correlation for IEEE 802.16d orthogonal frequency division multiplexing (OFDM) timing synchronization on Xilinx Virtex-6 and Spartan-6 field programmable gate arrays (FPGAs). The natural approach, given the availability of embedded DSP blocks on these FPGAs, would be to implement standard multiplier-based cross-correlation. However, this can consume a significant number of DSP blocks, which may not fit on low-power devices. Hence, we compare a DSP48E1 slice-based design to four different quantizations of multiplierless correlation in terms of resource utilization and power consumption. OFDM timing synchronization accuracy is evaluated for each system at different signal-to-noise ratios. Results show that even relatively coarse multiplierless coefficient quantization can yield accurate timing synchronization, and does so at high clock speeds. Multiplierless designs enjoy reduced power consumption over the DSP48E1 Slice-based design, and can be used where DSP Slice resources are insufficient, such as on low-power FPGA devices.

Item Type: Article
DOI/Identification number: 10.1109/TVLSI.2012.2210917
Subjects: T Technology
Divisions: Faculties > Sciences > School of Computing
Depositing User: Ian McLoughlin
Date Deposited: 25 Aug 2015 10:22 UTC
Last Modified: 29 May 2019 14:40 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/48891 (The current URI for this page, for reference purposes)
McLoughlin, Ian Vince: https://orcid.org/0000-0001-7111-2008
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