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Conference Paper
Adaptive MIMO decision feedback equalization for receivers in time-varying channels
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- Authors
- Jihoon Choi, Heejung Yu, Yong H. Lee
- Issue Date
- 2003-04
- Citation
- Vehicular Technology Conference (VTC) 2003 (Spring), pp.1851-1856
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In an attempt to reduce the computational complexity of the vertical Bell Labs layered space time (V-BLAST) processing for time-varying channels, an efficient adaptive receiver is developed based on the generalized decision feedback equalizer (GDFE) architecture. This receiver updates the filter weight vectors using a recursive least squares (RLS)-based time- and order-update algorithm. In time-varying channels, the proposed adaptive technique can be considerably simpler to implement than the V-BLAST processor with the channel tracking, yet its performance is almost comparable to that of the latter.