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Optimal Zero-Forcing precoding design : oversampled FB frame approach
This paper presents a frame analysis of Zero Forcing (ZF) precoding problem. It shows that from a frame point of view, the filter bank (FB) channel is a synthesis frame and its canonical dual analysis frame is the optimal ZF precoder under total power constraint. Based on this analysis, a new precoder design is presented. The new design removes the minimum phase assumption of polyphase FB channel in the existing methods and gives rise to optimal noncausal (stable) precoder. It provides a general framework for optimal zero-forcing precoding under total power constraint. The numerical results show that the new design outperforms existing causal stable design.
History
Start Page
2546End Page
2549Number of Pages
4Start Date
2010-01-01Finish Date
2010-01-01ISSN
1520-6149ISBN-13
9781424442966Location
Dallas, TX, USAPublisher
The Institute of Electrical and Electronics EngineersPlace of Publication
Piscataway, NJFull Text URL
Peer Reviewed
- Yes
Open Access
- No
Era Eligible
- Yes