A predictive handover scheme to improve service quality in the IEEE 802.21 network

Authors:
Chih-Peng Lin;Hsing-Lung Chen;Jenq-Shiou Leu
Affiliations:
Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC;Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC;Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC
Venue:
Computers and Electrical Engineering
Year:
2012

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Abstract

The Media Independent Handover (MIH) standard defined in the IEEE 802.21 specification supports vertical handovers across heterogeneous networks. A cross-layer scheduling scheme is proposed to exploit Link Going Down information from MIH to predict handover requirements, and then improve the performance of Quality of Service (QoS) enabled transport services given the limited radio spectrum available for handovers in a heterogeneous network environment. According to simulation results, the proposed scheme can effectively increase the effective range of QoS sensitive services at the cell border while executing the handover procedure.