The Multivariable Decision Feedback Equalizer - Multiuser Detection and Interference Rejection (1999)
Abstract / truncated to 115 words
The multivariable decision feedback equalizer is investigated as a tool for multiuser detection and interference rejection. Three different DFE structures are introduced. The first DFE has a non-causal feedforward filter and a causal feedback filter. We show how its parameters can be tuned to give a minimum mean-square error. The second DFE is derived under the constraint of realizability. The explicit structure and design equations for an optimum realizable minimum mean-square error DFE are obtained. The zero-forcing criterion is also considered, and conditions for the existence of a zero-forcing solution are derived. We then consider a DFE where both feedforward and feedback filters are FIR filters of predetermined degrees. We discuss the tuning procedure for ...
Information
- Author
- Tidestav, Claes
- Institution
- Uppsala University
- Supervisors
- Publication Year
- 1999
- Upload Date
- July 3, 2008
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