Title :
Robust Transceiver Optimization for Multiuser Miso Broadcast Systems with MSE Targets
Author :
Vucic, Nikola ; Boche, Holger
Author_Institution :
Heinrich Hertz Inst., Fraunhofer Inst. for Telecommun., Berlin
Abstract :
The downlink transmission in a single-cell wireless system is considered. The base station is equipped with an antenna array, and each user has one antenna. It is assumed that the channel state information at the base station is erroneous, with the exact channels lying in specified uncertainty regions. Linear spatial filters of all participants in the system are jointly optimized in order to minimize the total transmit power of the base station, while satisfying the users´ predefined mean square error targets for all channels that comply with the adopted error models. The solutions are obtained using semidefinite programming methods from convex optimization theory.
Keywords :
antenna arrays; cellular radio; fading channels; mean square error methods; optimisation; radio links; spatial filters; transceivers; MSE targets; antenna array; base station; channel state information; convex optimization theory; downlink transmission; linear spatial filters; mean square error; multiuser MISO broadcast systems; robust transceiver optimization; semidefinite programming methods; single-cell wireless system; Antenna arrays; Base stations; Broadcasting; Channel state information; Downlink; Mean square error methods; Robustness; Spatial filters; Transceivers; Uncertainty; Broadcast channels; antenna arrays; robustness;
Conference_Titel :
Computational Advances in Multi-Sensor Adaptive Processing, 2007. CAMPSAP 2007. 2nd IEEE International Workshop on
Conference_Location :
St. Thomas, VI
Print_ISBN :
978-1-4244-1713-1
Electronic_ISBN :
978-1-4244-1714-8
DOI :
10.1109/CAMSAP.2007.4497968
