MMSE optimization with per-base-station power constraints for network MIMO systems

Shuying Shi, Martin Schubert, Nikola Vucic, Holger Boche

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

46 Scopus citations

Abstract

Cooperative transmission with multiple base stations a way to overcome the interference limitation of conventional cellular system. We investigate the problem of linear transceiver design for such a network Multiple-Input-Multiple- Output (MIMO) system with per-base-station power constraints. Four design goals are considered: minimizing the total sum-MSE subject to per-base-station power constraints; minimizing the total transmit power subject to a total sum-MSE target and per-base-station power constraints; minimizing the maximum weighted user-MSE subject to per-base-station power constraints; minimizing the total transmit power subject to a set of user-MSE targets and per-base-station power constraints. For these problems, we derive globally optimal transmitters by reformulating the problems as convex Second Order Cone Programs (SOCPs). We also propose iterative algorithms for joint transmitter/receiver optimization. The joint transceiver optimization exploits that for the optimal transmitter, the receivers can be updated as linear MMSE filters. We prove that the proposed algorithms converge to local optima due to the non-convexity of the problems.

Original languageEnglish
Title of host publicationICC 2008 - IEEE International Conference on Communications, Proceedings
Pages4106-4110
Number of pages5
DOIs
StatePublished - 2008
Externally publishedYes
EventIEEE International Conference on Communications, ICC 2008 - Beijing, China
Duration: 19 May 200823 May 2008

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Conference

ConferenceIEEE International Conference on Communications, ICC 2008
Country/TerritoryChina
CityBeijing
Period19/05/0823/05/08

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