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A Block-Parallel Architecture for Initial and Fine Synchronization in OFDM Systems
Abstract : A novel low complexity parallel algorithm and its associated architecture are proposed for initial synchronization in orthogonal frequency division multiplexing (OFDM) systems. The method is hierarchical and uses auto-correlation for the first step and cross-correlation for the second step. The main advantage of the proposed approach is that it reduces the computational complexity by a factor of five (80%), while achieving similar mean square error (MSE) as cross-correlation based methods. The method uses block-level parallelism for auto-correlation step, which speeds up the computation significantly. After fixed-point analysis, a parallel architecture is proposed to accelerate both coarse and fine synchronization steps. This parallel architecture is scalable and provides speed-up proportional to number of parallel blocks.
Cited literature [8 references]
https://hal.inria.fr/hal-00931445
Contributor : Olivier Sentieys <>
Submitted on : Wednesday, January 15, 2014 - 1:00:22 PM
Last modification on : Friday, March 6, 2020 - 1:37:25 AM
Document(s) archivé(s) le : Tuesday, April 15, 2014 - 10:36:41 PM
Contributor : Olivier Sentieys <>
Submitted on : Wednesday, January 15, 2014 - 1:00:22 PM
Last modification on : Friday, March 6, 2020 - 1:37:25 AM
Document(s) archivé(s) le : Tuesday, April 15, 2014 - 10:36:41 PM
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