[1] Pan YunqiangMeng XinJiang Bin, Gao Xiqi,. Co-channel interference rejection for MIMO-OFDM systems [J]. Journal of Southeast University (English Edition), 2015, 31 (2): 170-174. [doi:10.3969/j.issn.1003-7985.2015.02.002]

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

31

Issue:

2015 2

Page:

170-174

Research Field:

Information and Communication Engineering

Publishing date:

2015-06-20

Info

Title:

Co-channel interference rejection for MIMO-OFDM systems

Author(s):

Pan YunqiangMeng XinJiang Bin;  Gao Xiqi

National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

Keywords:

channel estimation;  spatial covariance matrix(SCM)estimation;  interference rejection;  interference rejection combining(IRC)receiver

PACS:

TN929.5

DOI:

10.3969/j.issn.1003-7985.2015.02.002

Abstract:

A method based on the maximum a posteriori probability(MAP)criterion is proposed to estimate the channel frequency response(CFR)matrix and interference-plus-noise spatial covariance matrix(SCM)for multiple input and multiple output orthogonal frequency division multiplexing(MIMO-OFDM)systems. An iterative solution is proposed to solve the MAP-based problem and an interference rejection combining(IRC)receiver is derived to suppress co-channel interference(CCI)based on the estimated CFR and SCM. Furthermore, considering the property of SCM, i.e., Hermitian and semi-definite, two schemes are proposed to improve the accuracy of SCM estimation. The first scheme is proposed to parameterize the SCM via a sum of a series of matrices in the time domain. The second scheme measures the SCM on each subcarrier as a low-rank model while the model order can be chosen through the penalized-likelihood approach. Simulation results are provided to demonstrate the effectiveness of the proposed method.

References:

[1] 3rd Generation Partnership Project. TS 36.300: evolved universal terrestrial radio access(EUTRA)and evolved universal terrestrial radio access network(E-UTRAN); overall description; Stage2[EB/OL].(2009)[2015-02-01]. http://www.3gpp.org/dynareport/36300.htm.
[2] Lampinen M, Del C F, Kuosmanen T, et al. System-level modeling and evaluation of interference suppression receivers in LTE system[C]//Proceedings of the Vehicular Technology Conference (VTC Spring). Yokohama, Japan, 2012:6239964-1-6239964-5.
[3] Lomnitz Y, Andelman D. Efficient maximum likelihood detector for MIMO systems with small number of streams [J]. Electronics Letters, 2007, 43(22): 1212-1214.
[4] Larsson E G. Semi-structured interference suppression for orthogonal frequency division multiplexing[C]//Proceedings of the IEEE International Symposium on Signal Processing and Information Technology. Darmstadt, Germany, 2003:435-438.
[5] Ngren G, Ast L D, Ottersten B. Structured spatial interference rejection combining [C]//Proceedings of the European Signal Processing Conference. Tampere, Finland, 2000:435-438.
[6] Raghavendra M, Juntti M, Myllyla M. Co-channel interference mitigation for 3G LTE MIMO-OFDM systems[C]//Proceedings of IEEE International Conference on Communications. Dresden, Germany, 2009:1-5.
[7] Li Q, Zhu J, Guo X, et al. Asynchronous co-channel interference suppression in MIMO OFDM systems[C]//IEEE International Conference on ICC. Glasgow, UK, 2007:5744-5750.
[8] Li Y. Simplified channel estimation for OFDM systems with multiple transmit antennas [J]. IEEE Transactions on Wireless Communications, 2002, 1(1): 67-75.
[9] Li L. A method to factorize the spectral density of multiple moving average processes [J]. J Systems Sci Math, 1994, 7(1):69-76.
[10] Stoica P, Selen Y. Model-order selection: a review of information criterion rules [J]. Signal Processing Magazine, 2004, 21(4): 36-47.
[11] Rissanen J. Modeling by shortest data description [J]. Automatica, 1978, 14(5): 465-471.
[12] Seethaler D, Matz G, Hlawatsch F. An efficient MMSE-based demodulator for MIMO bit-interleaved coded modulation[C]//Proceedings of the Global Telecommunications Conference. Dallas, TX, USA, 2004:2455-2459.

Memo

Memo:

Biographies: Pan Yunqiang(1989—), male, graduate; Gao Xiqi(corresponding author), male, doctor, professor, xqgao@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.61320106003, 61222102), the National High Technology Research and Development Program of China(863 Program)(No.2012AA01A506).
Citation: Pan Yunqiang, Meng Xin, Jiang Bin, et al. Co-channel interference rejection for MIMO-OFDM systems[J].Journal of Southeast University(English Edition), 2015, 31(2):170-174.[doi:10.3969/j.issn.1003-7985.2015.02.002]

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