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Beom Hun Kim
Maximizing Network Utilization in IEEE 802.21 Assisted Vertical Handover over Wireless Heterogeneous Networks
Dinesh Pandey, Beom Hun Kim, Hui-Seon Gang, Goo-Rak Kwon and Jae-Young Pyun
Page: 771~789, Vol. 14, No.3, 2018
10.3745/JIPS.03.0099
Keywords: Handover Decision, IEEE 802.21, Occupied Bandwidth, SINR, Vertical Handover
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Maximizing Network Utilization in IEEE 802.21 Assisted Vertical Handover over Wireless Heterogeneous Networks
Dinesh Pandey, Beom Hun Kim, Hui-Seon Gang, Goo-Rak Kwon and Jae-Young Pyun
Page: 771~789, Vol. 14, No.3, 2018

Keywords: Handover Decision, IEEE 802.21, Occupied Bandwidth, SINR, Vertical Handover
Show / Hide Abstract
In heterogeneous wireless networks supporting multi-access services, selecting the best network from among
the possible heterogeneous connections and providing seamless service during handover for a higher Quality
of Services (QoSs) is a big challenge. Thus, we need an intelligent vertical handover (VHO) decision using
suitable network parameters. In the conventional VHOs, various network parameters (i.e., signal strength,
bandwidth, dropping probability, monetary cost of service, and power consumption) have been used to
measure network status and select the preferred network. Because of various parameter features defined in
each wireless/mobile network, the parameter conversion between different networks is required for a
handover decision. Therefore, the handover process is highly complex and the selection of parameters is
always an issue. In this paper, we present how to maximize network utilization as more than one target
network exists during VHO. Also, we show how network parameters can be imbedded into IEEE 802.21-
based signaling procedures to provide seamless connectivity during a handover. The network simulation
showed that QoS-effective target network selection could be achieved by choosing the suitable parameters
from Layers 1 and 2 in each candidate network.