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Statistical Eigen-Beamforming With Selection Diversity for Spatially Correlated OFDM Downlink
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- Authors
- Jin Ho Choi, Seong Rag Kim, In-Kyeong Choi
- Issue Date
- 2007-09
- Citation
- IEEE Transactions on Vehicular Technology, v.56, no.5, pp.2931-2940
- ISSN
- 0018-9545
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- Statistical eigen-beamforming is shown to be effective over a spatially correlated fading channel. In the paper, we investigate the use of the statistical eigen-beamforming with short-term selection for an orthogonal frequency-division multiplexing (OFDM) downlink. The contributions of the paper are as follows: 1) An efficient statistical eigen-beamforming method with limited feedback for OFDM has been proposed; and 2) exact and asymptotic expressions of the average bit error rate for (transmitter side) spatially correlated Rayleigh fading channels are derived. In particular, the asymptotic expression allows us to gain insight to statistical eigen-beamforming with selection diversity in terms of array gain and diversity order. © 2007 IEEE.
- KSP Keywords
- Bit Error Rate(And BER), Diversity Order, Rayleigh Fading Channel, array gain, average bit error rate, correlated Rayleigh fading, correlated fading channel, limited feedback, selection diversity, short-term, term selection