Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
564524 | Signal Processing | 2009 | 8 Pages |
Abstract
We consider zero-forcing equalization of frequency selective multiple-input multiple-output (MIMO) channels by causal and linear time-invariant precoders in the presence of intersymbol interference. Our motivation is twofold. First, we are concerned with the optimal performance of causal precoders from a worst case point of view. Therefore we construct an optimal causal precoder, where contrary to other works our construction is not limited to finite or rational impulse responses. Moreover, we derive a novel numerical approach to computation of the optimal performance index achievable by causal precoders. This quantity is important in the numerical determination of optimal precoders.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Sander Wahls, Holger Boche, Volker Pohl,