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Eigenbeamforming with selection diversity for MIMO-OFDM downlink
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- Authors
- Jinho Choi, Seong Rag Kim, In-Keong-Choi
- Issue Date
- 2004-09
- Citation
- Vehicular Technology Conference (VTC) 2004 (Fall), pp.1806-1810
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- Eigenbeamforming is shown to be effective over a spatially correlated fading channel. In conjunction with the short-term selection of eigenmodes, it can also provide good transmit diversity gain with a smaller amount of feedback. In this paper, we investigate the use of eigenbeamforming with short-term selection for orthogonal frequency-division multiplexing (OFDM) systems. We derive exact and asymptotic expressions of the average bit error rate (BER) for a spatially correlated Rayleigh fading channel. Especially. the asymptotic expression allows us to gain insight into eigenbeamforming.