Performance Analysis of CP-Based and CAZAC Training Sequence-Based Synchronization in OFDM System
AbstractOrthogonal Frequency Division Multiplexing (OFDM) is a popular wireless data transmission scheme. However, its synchronization is still being a major problem when it is applied in real hardware. Cyclic Prefix (CP) based synchronization is one of the solutions in this problem, but CP has high crest factor. In the other hand, CAZAC sequence is another solution with lower crest factor but the higher complexity and also CAZAC has potential in security and channel estimation implementation. The performance between CP and CAZAC sequence based synchronization in OFDM system is analyzed in this paper. The real hardware, Universal Software Rado Peripheral (USRP), is used to prove the analysis. The CAZAC sequence has 10% performance increased in frequency offset than CP based synchronization.
T. M. Scmidl, D. C. Cox, Robust Frequency and Timing Synchronization for OFDM, IEEE Transactions of Communications, Vol. 45, No. 12, pp. 1613-1621, 1997.
H. Minn, V. K. Bhargava, K. B. Letaief, A Robust Timing and Frequency Synchronization for OFDM Systems, IEEE Transactions on Wireless Communications, Vol. 2, No. 4, pp. 822-839, 2003.
G. Ren, Y. Chang, H. Zhang, and H. Zhang, Synchronization Method Based On a New Constant Envelop Preamble for OFDM systems, IEEE Transactions of Broadcasting, Vol. 51, No. 1, pp. 139-143, 2005.
J. Meng, G. Kang, A Novel OFDM Synchronization Algorithm Based on CAZAC Sequence, International Conference on Computer Application and System Modeling, Taiyuan, pp. 1634-1637, 2010.
E. M. Silva C., F. J. Harris, G. J. Dolecek, Synchronizations Algorithm based on Weighted CAZAC Preambles for OFDM Systems, International Symposium on Communications and Information Technologies, Surat Thani, pp. 192-197, 2013.
M. Ruan, M. C. Reed, Z. Shi, Training Symbol Based Coarse Timing Synchronization in OFDM Systems, IEEE Transactions of Wireless Communication, Vol. 8, No. 5, pp. 2558-2569, 2009.
O. Omomukuyo, D. Chang, J. Zhu, O. Dobre, R. Venkatesan, T. Ngatched. C. Rumbolt, Joint Timing and Frequency Synchronization based on Weighted CAZAC Sequences for Reduced Guard Interval CO-OFDM Systems, Optics Express, Vol.23, No. 5, pp. 1-12, 2015.
L. Deneire, B. Gyselinckx, M. Engels, Training Sequence versus Cyclic Prefix â€” A New Look on Single Carrier Communication, IEEE Communications Letter, Vol. 5, No. 7, pp. 292-294, 2001.
L. Lei, C. Song, T. Zhang, Performance Evaluation for OFDM Link Based on LabVIEW and USRP, Instrumentation and Measurement, Computer, Communication and Control (IMCCC), Harbin, pp. 897-901, 2014.
The Institute of Electrical and Electronic Engineers, Inc., IEEE Standard of Information Technology, IEEE Press (New York), 802.11-2012, 2012.
L. Litwin, M. Pugel, The Principal of OFDM, RF Signal Processing [online], Microsoft Research, pp. 30-48, 2001.
C. R. N. Athaudage, BER Sensitivity of OFDM System to Time Synchronization Error, The 8th International Conference on Communication System, pp. 42-46, 2002.
J.Brillhart,P.Morton, "A Case Study in Mathematical Research: The
Golay-Rudin-Shapiro Sequence," American Mathematical Monthly, Vol103, Part 10, pp 854-869, 1996.
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