EM-based receiver design for uplink MIMO-OFDMA systems

Title: EM-based receiver design for uplink MIMO-OFDMA systems
Creator: Wang, Meng; Goodwin, Graham C.; Quevedo, Daniel E.
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
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: conference paper
Date: 2008
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.
Subject: EM-based receiver design; channel estimates; data detection; expectation maximization; likelihood function; reduced-complexity algorithm; space-time block-coding; uplink MIMO-OFDMA systems
Identifier: uon:6199
Identifier: http://hdl.handle.net/1959.13/802758
Identifier: ISBN:1424420759
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