Open Access

Optimal Design of Noisy Transmultiplexer Systems

EURASIP Journal on Advances in Signal Processing20062006:064645

DOI: 10.1155/ASP/2006/64645

Received: 31 October 2004

Accepted: 19 September 2005

Published: 14 March 2006


An optimal design method for noisy transmultiplexer systems is presented. For a transmultiplexer system with given transmitters and desired crosstalk attenuation, we address the problem of minimizing the reconstruction error while ensuring that the crosstalk of each band is below a prescribed level. By employing the mixed optimization, we will ensure that the system with suboptimal reconstruction error is more robust and less sensitive to the changes of input signals and channel noises. Due to the overlapping of adjacent subchannels, crosstalk between adjacent channels is expected. And the problem of crosstalk attenuation is formulated as an optimization problem, solved in terms of linear matrix inequalities (LMIs). The simulation examples demonstrate that the proposed design performs better than existing design methods.


Authors’ Affiliations

Signal Processing Group, Institute of Physics, University of Oldenburg
School of Electrical and Electronic Engineering, Nanyang Technological University


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© Zhou and Xie 2006