Abstract
The key idea of this paper is to a use cross-layer triggering concept in order to control the vertical handover (VHO) in heterogeneous networks. Current mobility management protocols could not handle the ever-growing quality of service (QoS) demand for connected mobile nodes (MNs). Motivated by addressed challenging problems, the proposed multi-layer parallel handover optimization (MPHO) is capable of handling application awareness in its decision process. Each layer in the protocol stack implements its own decision mechanisms in response to environmental changes. Independent decisions may lead to un-optimal operation while reacting to the same event. MPHO coordinates triggered actions using a centralized controller. MPHO utilizes dynamic attributes to reduce HO latencies and signaling overheads with a more advanced coordination logic. It contains a prediction module that utilizes MN mobility patterns. Evaluation results validate the achieved enhancements with a smaller HO failure rate and increased throughput. MPHO achieves improvements in terms of perceived quality and delay constraints.
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Al Emam, F.A., Nasr, M.E. & Kishk, S.E. Context-aware parallel handover optimization in heterogeneous wireless networks. Ann. Telecommun. 75, 43–57 (2020). https://doi.org/10.1007/s12243-019-00733-7
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DOI: https://doi.org/10.1007/s12243-019-00733-7