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Browse Journals & Magazines > Communications Letters, IEEE ...> Volume:13 Issue:12 Help

Impact of open-loop power controlled feedback on multiuser capacity in Rayleigh fading channels

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3 Author(s)
Eun-Hee Shin ; Dept. of Electr. Eng. & Comput. Sci., Hanyang Univ., Ansan, South Korea ; Dongwoo Kim ; Zander, J.

This letter investigates the impact of open-loop power control (OLPC) employed in uplink (UL) feedback channel on the multiuser downlink (DL) capacity. OLPC is used to reduce the capacity loss caused by the feedback outage. Assuming flat Rayleigh channels correlated between DL and UL, we provide probability distributions on the DL SNR that are successfully fed back through UL managed by OLPC. Numerical results are used to verify the accuracy of the analysis and to show the impact of relevant parameters of OLPC on the capacity as a function of DL-UL correlation.

Published in:
Communications Letters, IEEE  (Volume:13 ,  Issue: 12 )

Date of Publication: December 2009

Page(s):
932 - 934
ISSN :
1089-7798
INSPEC Accession Number:
11020147
Digital Object Identifier :
10.1109/LCOMM.2009.12.091286
Date of Current Version :
15 December 2009
Issue Date :
December 2009
Sponsored by :
IEEE Communications Society

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