Open AccessProceedings Article
Proactive Access Point Driven Handovers in IEEE 802.11 Networks
Ensar Zeljkovic,Johann M. Marquez-Barja,Andreas Kassler,Roberto Riggio,Steven Latré +4 more
- pp 261-267
TLDR
This paper uses virtualization and softwarization to shift the traditional mobile node-driven handovers to the access point, while maintaining compliance with legacy devices, and develops a proactive handover algorithm ADNA, which combines network state, traffic load and node mobility information.Abstract:
In large and densely deployed IEEE 802.11 networks, a fast and seamless handover scheme is an important aspect in order to provide reliable connectivity for mobile users. However, IEEE 802.11 only supports decentralized, reactive and mobile node-driven handovers resulting in long handover times, packet loss due to interrupted connectivity and sub-optimal access point selection. Recently, centralized approaches have been developed that try to solve many of the challenges but these are mostly proprietary, reactive and require changes to mobile node stacks. In this paper, we propose a novel handover solution based on the principle of Software Defined Networking, that addresses the aforementioned challenges. Using virtualization and softwarization, we shift the traditional mobile node-driven handovers to the access point, while maintaining compliance with legacy devices. Moreover, we develop a proactive handover algorithm ADNA, which combines network state, traffic load and node mobility information. We evaluate our approach extensively in a testbed, showing that it outperforms existing approaches by improving the overall throughput by 116% while reducing the number of handovers by 44% on average.read more
Citations
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Journal ArticleDOI
ABRAHAM: Machine Learning Backed Proactive Handover Algorithm Using SDN
TL;DR: ABRAHAM is introduced, a machine learning backed, proactive, handover algorithm that uses multiple metrics to predict the future state of the network and optimize the load to ensure the preservation of QoS.
Journal ArticleDOI
A Review on Design and Implementation of Software-Defined WLANs
TL;DR: It is believed that SDN cannot only solve the long-existing issues for WLANs, but also enable researchers to bring more advanced techniques for higher data rates, better security, and quality of experience.
Journal ArticleDOI
User-AP Association Management in Software-Defined WLANs
TL;DR: This paper uses software-defined networking (SDN) to propose a user association solution for WLANs aiming to mitigate such inefficiencies, thus improving resource utilization and considering user-AP association jointly with multicast delivery leads to a significant performance increase over the default client-driven approach.
Proceedings ArticleDOI
An SDN-NFV Orchestration for Reliable and Low Latency Mobility in Off-the-Shelf WiFi
Rafael S. Guimaraes,Victor M. Garcia Martinez,Ricardo C. de Mello,Diego Rossi Mafioletti,Magnos Martinello,Moisés R. N. Ribeiro +5 more
TL;DR: A novel SDN-NFV based architecture with a low cost off-the-shelf WiFi that explores a multiconnectivity scheme at the user devices can provide an efficient seamless handover, increasing the likelihood of delivering packets with minimal effects on latency.
Journal ArticleDOI
Fairness and Load Balancing in SDWN Using Handoff-Delay-Based Association Control and Load Monitoring
TL;DR: Novel learning-based methods to monitor the network load to discover real-time load unbalances and model the load balancing problem as a utility maximization problem in which costs caused by handoff delay are considered are considered.
References
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Proceedings ArticleDOI
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Proceedings ArticleDOI
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Proceedings Article
Designing high performance enterprise Wi-Fi networks
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Proceedings ArticleDOI
SMARTA: a self-managing architecture for thin access points
Nabeel Ahmed,Srinivasan Keshav +1 more
TL;DR: This work evaluates the SMARTA architecture through simulation and shows that the solution is not only feasible, but also provides significant improvements over existing approaches.