NDLI: Rate constrained decentralized beamforming for MIMO interfering broadcast channel

Content Provider	IEEE Xplore Digital Library
Author	Kaleva, J. Tolli, A. Juntti, M.
Copyright Year	2015
Description	Author affiliation: Centre for Wireless Commun., Univ. of Oulu, Oulu, Finland (Kaleva, J.; Tolli, A.; Juntti, M.)
Abstract	We consider rate constrained decentralized downlink transceiver optimization for cellular systems. Our optimization objective is the weighted sum rate, which provides generalized objective for wide class of priority and throughput management problems. The quality-of-service imposing rate constraints make the problem considerably more complex, and have been largely neglected in the past in the context of utility maximization. The decentralized design is achieved with a novel combination of successive convex approximation and alternating direction method of multipliers (ADMM). While providing more sophisticated interference management, the considered algorithm does not increase the computational complexity, when compared to other recently published rate optimizing methods. The proposed design is shown, by numerical evaluation, to provide significant improvement in the convergence properties. Furthermore, we show that the ADMM approach provides much needed stability in the time correlated channels.
Starting Page	376
Ending Page	380
File Size	139885
Page Count	5
File Format	PDF
e-ISBN	9781467367820
DOI	10.1109/PIMRC.2015.7343327
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-30
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Approximation methods Receivers Lead Transceivers Optimization Quality of service Downlink throughput maximization Cellular networks coordinated beamforming non-linear optimization
Content Type	Text
Resource Type	Article

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