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Hier finden Sie wissenschaftliche Publikationen aus den FraunhoferInstituten. Lower bound on mean squared channel estimation error for multiuser receiver
 Skellern, D. ; IEEE Circuits and Systems Society: ISCAS 2001, IEEE International Symposium on Circuits and Systems. Conference proceedings. Vol.2 : 06  09 May 2001, Sydney Convention and Exhibition Centre, Darling Harbour, Sydney, Australia Piscataway, NJ: IEEE, 2001 ISBN: 0780366859 pp.6164 
 International Symposium on Circuits and Systems (ISCAS) <34, 2001, Sydney> 

 English 
 Conference Paper 
 Fraunhofer HHI () 
 error; multipath channels; multiuser channels; parameter estimation; radio receiver; radio reception; lower bound; mean squared channel estimation error; multiuser receiver; pilotbased multiuser channel estimation system; multipath radio environment; nperiodic pilot sequence; optimal linear estimator 
Abstract
We investigate pilotbased multiuser channel estimation systems for a multipath radio environment, in which each user sends an individual Nperiodic pilot sequence to the common receiver so as to estimate its N uncorrelated multipath components. For the case that all paths having the same average power output, we derive the optimal linear estimator in the absence of any prior knowledge about any distribution and give a lower bound on the maximum mean squared estimation error that grows linearly with the number of users. We also specify necessary and sufficient condition to attain this bound.