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Future Internet 2018, 10(1), 9; https://doi.org/10.3390/fi10010009

A Velocity-Aware Handover Trigger in Two-Tier Heterogeneous Networks

1
LRIT-CNRST (URAC N 29), Faculty of Sciences, Mohammed V University, Rabat 1014, Morocco
2
Laboratory of Informatics, Systems and Optimization, Faculty of Sciences, Ibn Tofail University, Kenitra 133, Morocco
*
Author to whom correspondence should be addressed.
Received: 27 November 2017 / Revised: 9 January 2018 / Accepted: 11 January 2018 / Published: 15 January 2018
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Abstract

The unexpected change in user equipment (UE) velocity is recognized as the primary explanation for poor handover quality. In order to resolve this issue, while limiting ping-pong (PP) events we carefully and dynamically optimized handover parameters for each UE unit according to its velocity and the coverage area of the access point (AP). In order to recognize any variations in velocity, we applied Allan variance (AVAR) to the received signal strength (RSS) from the serving AP. To assess our approach, it was essential to configure a heterogeneous network context (LTE-WiFi) and interconnect Media-Independent Handover (MIH) and Proxy Mobile IPv6 (PMIPv6) for seamless handover. Reproduction demonstrated that our approach does not only result in a gain in relatively accurate velocity but in addition reduces the number of PP and handover failures (HOFs). View Full-Text
Keywords: mobility management; heterogeneous networks (HetNets); IEEE 802.21 MIH; Proxy MIPv6; Network Simulator 3 (NS3) mobility management; heterogeneous networks (HetNets); IEEE 802.21 MIH; Proxy MIPv6; Network Simulator 3 (NS3)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ait Mansour, A.; Enneya, N.; Ouadou, M. A Velocity-Aware Handover Trigger in Two-Tier Heterogeneous Networks. Future Internet 2018, 10, 9.

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