NDLI: Joint MIMO Channel Tracking and Symbol Decoding Using Kalman Filtering

Content Provider	IEEE Xplore Digital Library
Author	Balakumar, B. Shahbazpanahi, S. Kirubarajan, T.
Copyright Year	1991
Abstract	In this paper, the problem of channel tracking is considered for multiple-input multiple-output (MIMO) communication systems where the MIMO channel is time-varying. We consider a class of MIMO systems where orthogonal space-time block codes are used as the underlying space-time coding schemes. For such systems, a two-step MIMO channel tracking algorithm is proposed. As the first step, Kalman filtering is used to obtain an initial channel estimate for the current block based on the channel estimates obtained for previous blocks. Then, in the second step, the so-obtained initial channel estimate is refined using a decision-directed iterative method. We show that, due to specific properties of orthogonal space-time block codes, both the Kalman filter and the decision-directed algorithm can be significantly simplified. Simulation results show that the proposed tracking method can provide results in a symbol error rate performance that is 1 dB better than that of the differential receiver.
Sponsorship	IEEE Signal Processing Society
Starting Page	5873
Ending Page	5879
Page Count	7
File Size	289174
File Format	PDF
ISSN	1053587X
Volume Number	55
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Decoding Kalman filters Slabs Diversity reception Filtering Polynomials Wireless communication Rayleigh channels Block codes space–time coding Channel tracking decision-directed channel equalization Kalman filtering multiple-input multiple-output (MIMO) communications space-time coding
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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