A Compact CORDIC Algorithm for Synchronization of Carrier Frequency Offset in OFDM Modems

Kyu In LEE  Jonghan KIM  Jaekon LEE  Yong Soo CHO  

IEICE TRANSACTIONS on Communications   Vol.E89-B   No.3   pp.952-954
Publication Date: 2006/03/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.3.952
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Devices/Circuits for Communications
OFDM,  CORDIC,  compact CORDIC,  CFO,  

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In this letter, a compact CORDIC algorithm is proposed to efficiently implement a synchronization block for carrier frequency offset (CFO) in OFDM modems. The compact CORDIC algorithm allows us to combine a CFO estimation block and a CFO compensation block into a single CFO synchronization block. It is shown by FPGA implementation results that the compact CORDIC algorithm can achieve a significant reduction in hardware complexity and latency for implementing the synchronization block in OFDM modems.