Open AccessDOI
SCIFI – A Software-Based Controller for Efficient Wireless Networks
TLDR
The SCIFI algorithms, its interface, the current deployment at UFF and the future work planned forSCIFI are described.Abstract:
SCIFI is an open source software wireless controller. Large scale wireless networks that use low cost (SOHO) Access Points are hard to install and run due to the complexity of configuring and monitoring many APs with a distributed interface, coupled with the difficulty of creating a good network configuration with no help from the system. On the other hand, hardware controllers and their compatible APs are too expensive, proprietary and ultimately tie the buyer to a single vendor. SCIFI allows the use of inexpensive hardware to create large scale wireless installations. This paper describes the SCIFI algorithms, its interface, the current deployment at UFF and the future work planned for SCIFI.read more
Citations
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Journal ArticleDOI
A Unified Methodology to Predict Wi-Fi Network Usage in Smart Buildings
TL;DR: In this article, the authors proposed a unified experimental methodology to evaluate machine learning (ML) models on their capacity to accurately predict Wi-Fi access point demand for energy-efficient smart buildings.
Journal ArticleDOI
Association stability and handoff latency tradeoff in dense IEEE 802.11 networks: A case study
TL;DR: It is argued that the findings presented in this study can help develop more stable handoff algorithms for dense wireless networks, by analyzing the implementation used by the most common devices and conducting comparative tests in a real network.
Proceedings ArticleDOI
Multi-Factor Dynamic Channel Assignment approach for Wi-Fi networks
TL;DR: MFDCA (Multi-Factor Dynamic Channel Assignment) was evaluated in a real testbed and results showed that it reduced the packet loss rates and improved the quality and reliability of network traffic throughout, requiring relatively low sensing process complexity.
Proceedings ArticleDOI
A Case Study of Association Instability in Dense IEEE 802.11 Networks
TL;DR: By analyzing the implementation used by the most common devices, it is concluded that this instability, known as the “ping-pong effect”, results from the direct usage of RSSI samples which are highly variable.
Journal ArticleDOI
eSCIFI: An Energy Saving Mechanism for WLANs Based on Machine Learning
Guilherme Henrique Apostolo,Flavia Bernardini,Luiz Magalhaes,Débora Christina Muchaluat Saade +3 more
TL;DR: The results showed that the eSCIFI mechanism using the cSCifI+ clustering algorithm achieves the best performance and that it can save up to 64.32% of the UFF SCIFI network energy without affecting the user coverage.
References
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Simple Network Management Protocol (SNMP)
TL;DR: This RFC is a re-release of RFC 1098, with a changed "Status of this Memo" section plus a few minor typographical corrections.
The IP Network Address Translator (NAT)
K. Egevang,Paul Francis +1 more
TL;DR: The two most compelling problems facing the IP Internet are IP address depletion and scaling in routing and the short-term solution is CIDR (Classless InterDomain Routing).
Proceedings ArticleDOI
Centralized channel allocation algorithm for IEEE 802.11 networks
Helga Dolorico Balbi,Natália Coelho Couto de Azevedo Fernandes,F. Souza,Ricardo C. Carrano,Célio Albuquerque,Débora C. Muchaluat-Saade,Luiz Magalhaes +6 more
TL;DR: The channel allocation algorithm designed for central controllers of infra-structured IEEE 802.11 networks reduces the interference in controlled access points through the dynamic choice of their operating channels and, unlike other proposals, was designed to operate in a network composed of low cost devices from different brands, and open source software.