Full Text:   <1504>

CLC number: TP929.5

On-line Access: 

Received: 2008-01-28

Revision Accepted: 2008-05-21

Crosschecked: 2008-11-10

Cited: 0

Clicked: 3437

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
1. Reference List
Open peer comments

Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.12 P.1676~1684


Optimum weighting-coefficient-pair in inter-carrier interference self-cancellation scheme of OFDM system

Author(s):  Min-jian ZHAO, Di ZHANG, Bin CAI

Affiliation(s):  Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   mjzhao@zju.edu.cn, zhangdi417@163.com, cb8322@hotmail.com

Key Words:  Orthogonal frequency division multiplexing (OFDM), Frequency offset, Inter-carrier interference (ICI), Polynomial cancellation coding (PCC), Optimum weighting-coefficient-pair (OWCP)

Min-jian ZHAO, Di ZHANG, Bin CAI. Optimum weighting-coefficient-pair in inter-carrier interference self-cancellation scheme of OFDM system[J]. Journal of Zhejiang University Science A, 2008, 9(12): 1676~1684.

@article{title="Optimum weighting-coefficient-pair in inter-carrier interference self-cancellation scheme of OFDM system",
author="Min-jian ZHAO, Di ZHANG, Bin CAI",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Optimum weighting-coefficient-pair in inter-carrier interference self-cancellation scheme of OFDM system
%A Min-jian ZHAO
%A Bin CAI
%J Journal of Zhejiang University SCIENCE A
%V 9
%N 12
%P 1676~1684
%@ 1673-565X
%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820086

T1 - Optimum weighting-coefficient-pair in inter-carrier interference self-cancellation scheme of OFDM system
A1 - Min-jian ZHAO
A1 - Bin CAI
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 12
SP - 1676
EP - 1684
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0820086

As one of the most important components of the wideband wireless access technique, orthogonal frequency division multiplexing (OFDM) has a high usage rate of spectrum and combats inter-symbol interference (ISI) in multi-path fading channel. However, when there are frequency offsets during the signal transmission, the inter-carrier interference (ICI) is introduced, which significantly degrades the performance. The existing ICI self-cancellation schemes such as PCC-OFDM are not optimum to minimize the interference considering both noise and ICI. In this paper, a new metric named SINR (signal-to-interference-and-noise ratio) is proposed. We discuss the optimization issue when a constant frequency offset exists and in time-varying channels. The optimum weighting-coefficient-pair (OWCP) is obtained, which maximizes SINR theoretically through the alternant iteration algorithm. Simulations show that the performance of OWCP-OFDM is better than that of PCC-OFDM, especially when the frequency offset is large. Although the ICI self-cancellation scheme suffers bandwidth inefficiency, from the simulation results we can also see that the performance of OWCP-OFDM is much better than that of the standard OFDM systems with the same bandwidth efficiency when a frequency offset exists. Moreover, since the redundant modulation provides the capability to suppress ICI as well as a receiving SNR gain, it can be considered as exchanging the bandwidth for SNR.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


[1] Ahn, J., Lee, H.S., 1993. Frequency domain equalization of OFDM signal over frequency nonselective Rayleigh fading channels. Electron. Lett., 29(16):1476-1477.

[2] Al-Dhahir, N., 1996. Optimum finite-length equalization for multicarrier transceivers. IEEE Trans. on Commun., 44(1):56-64.

[3] Armstrong, J., 1999. Analysis of new and existing methods of reducing intercarrier interference due to carrier frequency offset in OFDM. IEEE Trans. on Commun., 47(3):365-369.

[4] Cimini, L.Jr., 1985. Analysis and simulation of a digital mobile channel using orthogonal frequency-division multiplexing. IEEE Trans. on Commun., 33(7):665-765.

[5] Li, R., Stette, G., 1995. Time-limited orthogonal multicarrier modulation schemes. IEEE Trans. on Commun., 43(234):1269-1272.

[6] Li, Y., Cimini, L.J.Jr., 2001. Bounds on the interchannel interference of OFDM in time-varying impairments. IEEE Trans. on Commun., 49(3):401-404.

[7] Muschallik, C., 1996. Improving an OFDM reception using an adaptive Nyquist windowing. IEEE Trans. on Consum. Electron., 42(3):259-269.

[8] Robertson, P., Kaiser, S., 1999a. Analysis of the Loss of Orthogonality Through Doppler Spread in OFDM Systems. Proc. GLOBECOM, 1b:701-706.

[9] Robertson, P., Kaiser, S., 1999b. The Effects of Doppler Spreads in OFDM(A) Mobile Radio Systems. Proc. VTC, 1:329-333.

[10] Russell, M., Stuber, G.L., 1995. Interchannel Interference Analysis of OFDM in a Mobile Environment. Proc. VTC, 2:820-824.

[11] Zhao, Y.P., Haggman, S.G., 2001. Intercarrier interference self-cancellation scheme for OFDM mobile communication systems. IEEE Trans. on Commun., 49(7):1185-1191.

Open peer comments: Debate/Discuss/Question/Opinion


Please provide your name, email address and a comment

Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - Journal of Zhejiang University-SCIENCE