An accurate performance analysis of an FFR scheme in the downlink of cellular systems under large-shadowing effect

We address the problem of analyzing the performances of interference-limited cellular networks in large-scale shadowing environments. Focusing on the fractional frequency reuse (FFR) framework, we examine how to optimally assign mobile users in a cell either to the full frequency reuse part or to th...

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Bibliographic Details
Published in:EURASIP journal on wireless communications and networking 2013-02, Vol.2013 (1), p.1-14, Article 48
Main Authors: Pijcke, Benoit, Gazalet, Marc, Zwingelstein-Colin, Marie, Coudoux, François-Xavier
Format: Article
Language:English
Subjects:
Approximation
Cellular
Communications Engineering
Computer simulation
Engineering
Engineering Sciences
Focusing
Frequency reuse
Information Systems Applications (incl.Internet)
Networks
Power control
Signal and Image processing
Signal,Image and Speech Processing
Strategy
Wireless communication
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Summary:We address the problem of analyzing the performances of interference-limited cellular networks in large-scale shadowing environments. Focusing on the fractional frequency reuse (FFR) framework, we examine how to optimally assign mobile users in a cell either to the full frequency reuse part or to the orthogonal part of the FFR band. Instead of using traditional Monte Carlo simulations, which do not provide sufficiently accurate results under important shadowing, we propose a fast and accurate numerical method. We consider a fast-fading environment and we use the ergodic capacity as the performance measure. Applying a distributed power control and scheduling strategy, we examine both cases where access points have knowledge of partial- or full-channel state information (CSI); for the latter, we also propose an approximated waterfilling strategy. The interest of our method lies in the fact that it allows for a fast and accurate analysis of the performances of FFR. In addition, it takes into account a broad range of shadowing environments.
ISSN:1687-1499
1687-1472
1687-1499
DOI:10.1186/1687-1499-2013-48