NDLI: Training Signal Design and Tradeoffs for Spectrally-Efficient Multi-User MIMO-OFDM Systems

Content Provider	IEEE Xplore Digital Library
Author	Yuejie Chi Gomaa, A. Al-Dhahir, N. Calderbank, A.R.
Copyright Year	2002
Abstract	In this paper, we design MMSE-optimal training sequences for multi-user MIMO-OFDM systems with an arbitrary number of transmit antennas and an arbitrary number of training symbols. It addresses spectrally-efficient uplink transmission scenarios where the users overlap in time and frequency and are separated using spatial processing at the base station. The robustness of the proposed training sequences to residual carrier frequency offset and phase noise is evaluated. This analysis reveals an interesting design tradeoff between the peak-to-average power ratio of a training sequence and the increase in channel estimation mean squared error over the ideal case when these two impairments are not present.
Starting Page	2234
Ending Page	2245
Page Count	12
File Size	432443
File Format	PDF
ISSN	15361276
Volume Number	10
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Training OFDM Channel estimation Transmitting antennas Discrete Fourier transforms Complexity theory RF impairments Training sequences design pilot design MIMO-OFDM multi-user systems carrier frequency offset phase noise
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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