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Robust and Low-Complexity Timing Synchronization Algorithm and its Architecture for ADSRC ApplicationsKIM, J. , TRONG ANH, H.
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advanced dedicated short range communication, cross-correlation method, field programmable gate array, orthogonal frequency division multiplexing, timing synchronization
ofdm(9), synchronization(6), timing(5), communications(5), electronics(4)
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About this article
Date of Publication: 2009-10-26
Volume 9, Issue 3, Year 2009, On page(s): 39 - 44
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2009.03008
Web of Science Accession Number: 000271872000008
SCOPUS ID: 77954752385
5.9 GHz advanced dedicated short range communications (ADSRC) is a short-to-medium range communication standard that supports both public safety and private operations in roadside-to-vehicle and vehicle-to-vehicle communication environments. The core technology of physical layer in ADSRC is orthogonal frequency division multiplexing (OFDM), which is sensitive to timing synchronization error. In this paper, a robust and low-complexity timing synchronization algorithm suitable for ADSRC system and its efficient hardware architecture are proposed. The implementation of the proposed architecture is performed with Xilinx Vertex-II XC2V1000 Field Programmable Gate Array (FPGA). The proposed algorithm is based on cross-correlation technique, which is employed to detect the starting point of short training symbol and the guard interval of the long training symbol. Synchronization error rate (SER) evaluation results and post-layout simulation results show that the proposed algorithm is efficient in high-mobility environments. The post-layout results of implementation demonstrate the robustness and low-complexity of the proposed architecture.
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