Abstract
Recently, the Single-Carrier Frequency Division Multiple Access (SC-FDMA) system has attracted the attention as an efficient alternative to the Orthogonal Division Multiple Access (OFDMA) system in the uplink communications. In this system, the Carrier Frequency Offsets (CFOs) disrupt the orthogonality between subcarriers, and give rise to Inter-Carrier Interference (ICI), and Multiple Access Interference (MAI) among users. In this paper, the impact of the CFOs on the performance of the Discrete Fourier Transform SC-FDMA (DFT-SC-FDMA) and the Discrete Cosine Transform SC-FDMA (DCT-SC-FDMA) systems is investigated. Based on the Minimum Mean Square Error (MMSE) criterion, a new low-complexity joint equalization and CFOs compensation scheme is proposed. It is refered to as the MMSE scheme. The MMSE weights of the proposed scheme are derived taking into account the MAI and the noise. Furthermore, a hybrid scheme comprising the proposed MMSE scheme and a Parallel Interference Cancellation (PIC) stage is also suggested and investigated to further enhance the performance of interleaved subcarriers mapping systems. From the obtained simulation results, it is clear that CFOs disrupt the orthogonality between the subcarriers in SC-FDMA systems and degrade the Bit Error Rate (BER) performance. The proposed compensation schemes are able to enhance the system performance, even in the presence of the estimation errors.
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Myung H. G., Lim J., Goodman D. J. (2006) Single carrier FDMA for uplink wireless transmission. IEEE Vehicle Technology Magazine 1(3): 30–38
Al-kamali F. S., Dessouky M. I., Sallam B. M., El-Samie F. E., Shawki F. (2010) Transceiver scheme for SC-FDMA implementing the wavelet transform and the PAPR reduction methods. IET Communcation 4(1): 69–79
Wilzeck, A., Cai, Q., Schiewer, M., & Kaiser, T. (Feb 2007). Effect of Multiple Carrier Frequency Offsets in MIMO SC-FDMA Systems. In Proceeding of the international ITG/IEEE workshop on Smart Antennas, Vienna, Austria.
Cheon, H. (Sept 2007). Frequency offset estimation for high speed users in E-UTRA uplink. In Proceedings of the IEEE PIMRC’07 (pp. 1–5, 3–7).
Le Khoa N. (2010) BER of OFDM in Rayleigh fading environments with selective diversity. Wireless Communications and Mobile Computing 10(2): 306–311
Le Khoa N. (2008) Insights on ICI and its effects on performance of OFDM systems. Digital Signal Processing 18(6): 876–884
Choi J., Lee C., Jung H. W., Lee Y. H. (2000) Carrier frequency offset compensation for uplink of OFDM-FDMA systems. IEEE Communication Letters 4(12): 414–416
Sathananthan K., Tellambura C. (2002) Partial transmit sequence and selected mapping schemes to reduce ICI in OFDM systems. IEEE Communication Letters 6(8): 313–315
Huang D., Letaief K. B. (2005) An interference-cancellation scheme for carrier frequency offsets correction in OFDMA systems. IEEE Transaction Communication 53(7): 1155–1165
Al-kamali, F. S., Dessouky, M. I., Sallam, B. M., El-Samie, F. E., & Shawki, F. (Dec 2009). A new single carrier FDMA system based on the discrete cosine transform. In Proceeding of the ICCES’9 conference (pp. 555–560, 14–16). Cairo, Egypt.
Yan, D., Bai, W., Xiao, Y., & Li, S. (Nov 2009). Multiuser interference suppression for uplink interleaved FDMA with carrier frequency offset. In International conference on wireless communications and signal processing 2009 (pp. 1–5, 13–15)
Zhang, X., Ryu, H. G., & Li, Y. (Sept 2009). Joint suppression of phase noise and CFO by block type pilots. In Proceeding of the 9th international symposium on communication and information technology (pp. 466–469, 28–30).
Cao Z., Tureli U., Yao Y. (2007) Low-complexity orthogonal spectral signal construction for generalized OFDMA uplink with frequency synchronization errors. IEEE Transaction Vehicle Technology 56(3): 1143–1154
Golub G. H., Loan C. F. (1996) Matrix computations (3rd Ed.). The Johns Hopkins University Press, Baltimore
3rd Generation Partnership Project. (Sep 2007). 3GPP TS 25.101—Technical specification group radio access network; user equipment (UE) radio transmission and reception (FDD) (release 7), Section B.2.2.
Yucek T., Arslan H. (2007) Carrier frequency offset compensation with successive cancellation in uplink OFDMA systems. IEEE Transaction on Wireless Communicaton 6(10): 3546–3551
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Al-kamali, F.S., Dessouky, M.I., Sallam, B.M. et al. Equalization and Carrier Frequency Offsets Compensation for the SC-FDMA System. Wireless Pers Commun 67, 113–138 (2012). https://doi.org/10.1007/s11277-011-0368-6
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DOI: https://doi.org/10.1007/s11277-011-0368-6