Small-Cell Base Station Power Allocation to Guarantee Quality of Service of Macro-Cell Mobile Station in Hierarchical Cell Structure
AUTHORS
Taehoon Kwon,Data Analysis Platform Center, Korea Institute of Science and Technology Information, 66, Hoegi-ro, Dongdaemun-gu, Seoul, Korea
Seung-pyo Jun,Data Analysis Platform Center, Korea Institute of Science and Technology Information, 66, Hoegi-ro, Dongdaemun-gu, Seoul, Korea
ABSTRACT
A hierarchical cell structure was proposed as a solution to solve the shadowing area problem and to satisfy the high data rate requirement. In a hierarchical cell structure, a small base station is installed in a shadowing area or at a point where high data rate is required in order to extend the coverage and to increase the data rate. To maximize the spectral efficiency, a small-cell generally uses the same frequency resource as that of a macro-cell. In this case, the quality of service for the macro-cell mobile station must not be decreased by the small-cell base station. In this paper, we propose a power allocation to support the quality of service of a macro-cell mobile station for a small-cell base station in hierarchical cell structure under Rayleigh fading channel. The Monte Carlo simulation results verify the superiority of the proposed technique.
KEYWORDS
hierarchical cell structure, quality of service, power allocation, Rayleigh fading channel
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