Mathematics – Optimization and Control
Scientific paper
2011-01-26
Mathematics
Optimization and Control
In proceedings of International Network Optimization Conference 2009 (INOC 2009), Pisa, Italy, 2009
Scientific paper
In this paper, we present optimization approaches for Access Point (AP) location and frequency assignment, two major planning tasks in deploying Wi-Fi networks. Since APs are relatively cheap, the major concern is network performance. We consider a performance metric, referred to as access efficiency, that captures key aspects of how user devices share access to the wireless medium. We propose a two-step approach to deal with AP location and frequency assignment in maximizing access efficiency. A novelty of our modeling approach is to estimate, in the first step of AP location, the impact of expected frequency availability on frequency assignment. For each of the two steps we derive hyperbolic formulations and their linearizations, and we propose a promising enumerative formulation. Sample results are reported to show the applicability of the approach.
Bosio Sandro
Yuan Di
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