Autor(es):
Pedro Neves 
; Márcio Melo ; Susana Sargento
Data: 2013
Origem: Electrónica e Telecomunicações
Assunto(s): WiMAX networks; eMIHF; handover scheme; mobility; WiMAX networks; eMIHF; handover scheme; mobility
Descrição
The Internet access paradigm is changing and a wide range of overlapping radio access technologies, such as WiMAX, Wi-Fi, 3GPP LTE/UMTS and DVB-H, will soon be available to most users and their multi-access devices.Therefore, novel mechanisms and protocols are needed toprovide seamless mobility between different wireless accesstechnologies. This paper presents novel handover procedures, based on media independent schemes, to address seamless mobility in heterogeneous environments. We propose an enhanced Media Independent Handover Framework (eMIHF), which extends IEEE 802.21 by allowing for efficient provisioning and activation of QoS resources in the target radio access technology during the handoverpreparation phase, and efficiently interacting with themobility process of the different technologies in place. Weevaluate eMIHF using the ns-2 simulator, and demonstratethat the proposed handover scheme provides seamlessmobility, with low latency and no packet loss. The Internet access paradigm is changing and a wide range of overlapping radio access technologies, such as WiMAX, Wi-Fi, 3GPP LTE/UMTS and DVB-H, will soon be available to most users and their multi-access devices.Therefore, novel mechanisms and protocols are needed toprovide seamless mobility between different wireless accesstechnologies. This paper presents novel handover procedures, based on media independent schemes, to address seamless mobility in heterogeneous environments. We propose an enhanced Media Independent Handover Framework (eMIHF), which extends IEEE 802.21 by allowing for efficient provisioning and activation of QoS resources in the target radio access technology during the handoverpreparation phase, and efficiently interacting with themobility process of the different technologies in place. Weevaluate eMIHF using the ns-2 simulator, and demonstratethat the proposed handover scheme provides seamlessmobility, with low latency and no packet loss.
