Optimization of Radio Resources for Wireless Access Networks based on Radio over Fiber

• Pedro Henrique Gomes UNICAMP
• Nelson L. S. da Fonseca UNICAMP
• Omar C. Branquinho PUC-Campinas

Abstract

In this article, we introduce a model based on integer linear programming (ILP) for minimizing the use of radio resources of networks based on Radio Over Fiber (RoF). The proposed architecture arranges cells based on a multi-layer structure, with cells in each layer providing different coverage radius. The model performs dynamic cell splitting to improve network capacity in congested areas and cell merging in areas with low demand. The computational demand of the proposed model increases proportionally to the number of layers of RAUs in the infrastructure. Results indicate that two layers of RAUs give the best trade-off between computational demand and quality of results, for network cost reduction as well as operator revenue increase.

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