NDLI: Self-optimization of Antenna Tilt and Pilot Power for dedicated channels

Content Provider	IEEE Xplore Digital Library
Author	ul Islam, M.N. Abou-Jaoude, R. Hartmann, C. Mitschele-Thiel, A.
Copyright Year	2010
Description	Author affiliation: Technische Universtät, München (Abou-Jaoude, R.; Hartmann, C.) \|\| Technische Universtät, Ilmenau (ul Islam, M.N.; Mitschele-Thiel, A.)
Abstract	In Radio Access Networks (RAN), fixed configurations result in poor network efficiency. This suboptimal performance is a direct result of user mobility and traffic patterns which changes over time and space. In this paper, we present a framework for a self-optimizing RAN, which adapts Antenna Tilt and Pilot Power according to the current load in the system. The framework uses distributed optimization and network performance-based optimization triggers. Additionally, we introduce the concept of Coupling Matrix, to avoid the traditional global network optimization. For realistic evaluations, we simulated our framework using a moving hot-spot user traffic model. This enables our framework to work under non-uniform traffic distribution with dedicated channels in a WCDMA network. The simulation results show significant performance gains, while ensuring the scalability and reduced complexity of the optimization problem.
Starting Page	196
Ending Page	203
File Size	979992
Page Count	8
File Format	PDF
ISBN	9781424475230
e-ISBN	9781424475254
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-31
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	INRIA
Subject Keyword	Base stations Self-optimization Coupling Matrix Scalability Adaptive arrays Telecommunication traffic Quality of service Performance gain Tabu Search Loaded antennas Radio access networks Traffic control Frequency Antenna Tilt Pilot Power
Content Type	Text
Resource Type	Article

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