Optimal windowing in MIMO OFDM for network interference suppression
Name
Copeland-2009-Optimal Windowing in MIMO OFDM for Network Interference Suppression.pdf
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212.62 KB
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Adobe PDF
Checksum (MD5)
2c819f903562e6a46ddae700ba34e867
Author(s)
Copeland, Andrew D.
Bliss, Daniel W., Jr.
McKellips, Andrew L.
Date Issued
May 2010
Journal
Conference record of the Forty-Third Asilomar Conference on Signals, Systems and Computers, 2009
Publisher
Institute of Electrical and Electronics Engineers
Citation
Copeland, Andrew D., Bliss, Daniel W., Jr., and McKellips, Andrew L. (2010). Optimal windowing in MIMO OFDM for network interference suppression. Conference record of the Forty-Third Asilomar Conference on Signals, Systems and Computers, 2009 (Piscataway, N.J.: IEEE): 1699-1703. © 2010 IEEE
Version
Final published version
Abstract
The combined use of orthogonal frequency-division multiplexing (OFDM) and wireless multiple-input multiple-output (MIMO) links is becoming common. For many applications, such as ad hoc wireless networks, interference is a significant issue. MIMO links allow for the spatial mitigation of interference; however, spatial interference mitigation when using OFDM modulation performs somewhat poorly because of the relatively limited interference spectral confinement of the Discrete Fourier Transform. Traditional windowing approaches that minimize leakage of the interference into neighboring carriers induce intercarrier interference. In this paper, a technique is developed for determining optimal windows that trade off interference suppression with intercarrier and interframe interference. This technique assumes channel statistics are known. Optimized windows for various levels of interference, delay spreads, frame length, and cyclic prefix lengths can be produced.
MIT Department
Lincoln Laboratory
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/ACSSC.2009.5469708
