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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/802758

Title
EM-based receiver design for uplink MIMO-OFDMA systems
Author/Creator
Wang, Meng;  Goodwin, Graham C.;  Quevedo, Daniel E.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Electrical Engineering and Computer Science
Description
In this paper we propose an iterative receiver for uplink MIMO-OFDMA systems based on the expectation maximization (EM) algorithm. Iterating between the E-step and the M-step, the EM-based receiver updates the channel estimates and, refines data detection by increasing the likelihood function. Practical implementation issues are also considered: space-time block-coding (STBC) is incorporated to improve system performance against fading; a reduced-complexity algorithm is proposed, which simplifies the computation whilst not compromising performance.
Relation
2008 IEEE International Conference on Communications. Proceedings of the 2008 IEEE International Conference on Communications (Beijing, China 19-23 May, 2008) p. 4516-4520
Publisher Link
http://dx.doi.org/10.1109/ICC.2008.847
Date
2008
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Keyword(s)
EM-based receiver design;  channel estimates;  data detection;  expectation maximization;  likelihood function;  reduced-complexity algorithm;  space-time block-coding;  uplink MIMO-OFDMA systems
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/802758
Identifier
ISBN:1424420759
Reviewed
Reviewed
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"EM-based receiver design for uplink MIMO-OFDMA systems"
 
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