Abstract
We present a low complexity adaptive transmission approach for spatially correlated MIMO channels. The proposed scheme adaptively switches between orthogonal space-time block codes (OSTBC) and spatial multiplexing (SM), depending of the channel correlation and SNR. We derive an exact closed-form expression and tight upper bound on the OSTBC capacity in double-correlated channels, and examine the relative capacity of OSTBC and SM in terms of the spatial correlation. We then derive efficient closed-form BER expressions for practical OSTBC transmission employing bit-interleaved coded modulation (BICM). Based on these results, we propose a practical adaptive algorithm which selects the combination of MIMO transmission scheme (OSTBC or SM), and BICM mode, which achieves the highest spectral efficiency whilst satisfying a pre-defined BER.
| Original language | English |
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| Title of host publication | 2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings |
| Place of Publication | Piscataway, NJ |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Pages | 1387-1391 |
| Number of pages | 5 |
| Volume | 3 |
| ISBN (Print) | 0780393929, 9780780393929 |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Melbourne, Australia Duration: 7 May 2006 → 10 Jul 2006 |
Other
| Other | 2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring |
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| Country/Territory | Australia |
| City | Melbourne |
| Period | 7/05/06 → 10/07/06 |