- 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
- Full Text
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