scholarly journals Análise de desempenho de handover em rede heterogênea usando MIH

2020 ◽  
Author(s):  
Marco Antônio Simões Teixeira ◽  
Alexandre Veloso De Matos ◽  
Mário Ezequiel Augusto
Keyword(s):  
Ieee 802.21

Atualmente os dispositivos móveis possuem várias interfaces de redes, podendo acessar a Internet usando várias tecnologias de rede sem fio. Porém, neste ambiente heterogêneo, as trocas de rede ocasionam perda de dados e de conexão. O IEEE propôs o protocolo IEEE 802.21 (MIH), uma arquitetura inter-camadas para auxiliar na troca de redes de tecnologias diferentes com a intenção de minimizar a perda de pacotes. Uma das vantagens é que ela pode prever a necessidade de uma troca de rede e avisar as camadas superiores sobre o evento. Este artigo apresenta os resultados da simulação de um ambiente heterogêneo sem fio onde nós analisamos os benefícios do evento Link_Going_Down do IEEE 802.21. O protocolo apresentou resultados significativos relacionados à vazão e ao tempo de handover.

scholarly journals Reliable Multicast Transport for Heterogeneous Mobile IP environment using Cross-Layer Information

2007 ◽  
Vol 3 (3) ◽  
pp. 187
Author(s):  
Ilka Miloucheva
Keyword(s):  
Quality Of Service ◽  
Mobile Ip ◽  
Cross Layer ◽  
Reliable Multicast ◽  
Seamless Handover ◽  
Ieee 802.21 ◽  
Application Requirements ◽  
Application Specific ◽  
Reliable Transport

Reliable multicast transport architecture designed for heterogeneous mobile IP environment using cross-layerinformation for enhanced Quality of Service (QoS) and seamless handover is discussed. In particular, application-specific reliable multicast retransmission schemes are proposed, which are aimed to minimize the protocol overhead taking into account behaviour of mobile receivers (loss of connectivity and handover) and the specific application requirements for reliable delivery (such as carousel, one-to-many download and streaming deliverycombined with recording). The proposed localized retransmission strategies are flexible configured for tree-based multicast transport. Cross layer interactions in order to enhance reliable transport and support seamless handover is discussed considering IEEE 802.21 media independent handover mechanisms. The implementation is based on Linux IPv6 environment. Simulations in ns2 focusing on the benefits of the proposed multicast retransmission schemes for particular application scenarios are presented.

Design Issues of 4G-Network Mobility Management

2014 ◽  
pp. 210-238
Author(s):  
D. H. Manjaiah ◽  
P. Payaswini
Keyword(s):  
Heterogeneous Networks ◽  
Mobile Networks ◽  
Mobility Management ◽  
Heterogeneous Media ◽  
Fourth Generation ◽  
Network Information ◽  
Ieee 802.21 ◽  
Research Areas ◽  
Media Independent Handover ◽  
The Media

Fourth Generation wireless networking (4G network) is expected to provide global roaming across different types of wireless and mobile networks. In this environment, roaming is seamless and users are always connected to the best network. Moreover, 4G networks will be packet switched systems entirely based on the IPv6 protocol. The essentiality of Quality of Service (QoS) and the heterogeneous nature of 4G pose high demands onto the mobility management technology. Due to this, one of the most challenging research areas for the 4G network is the design of intelligent mobility management techniques that take advantage of IP-based technologies to achieve global roaming among various access technologies. In order to address the issue of heterogeneity of the networks, IEEE 802.21 working group proposed Media Independent Handover (MIH). The scope of the IEEE 802.21 MIH standard is to develop a specification that provides link layer intelligence and other related network information to upper layers to optimize handovers between heterogeneous media. The IEEE 802.21 group defines the media independent handover function that will help mobile devices to roam across heterogeneous networks and stationary devices to switch over to any of the available heterogeneous networks around it.

Design Issues of 4G-Network Mobility Management

2016 ◽  
pp. 634-662
Author(s):  
D. H. Manjaiah ◽  
P. Payaswini
Keyword(s):  
Heterogeneous Networks ◽  
Mobile Networks ◽  
Mobility Management ◽  
Heterogeneous Media ◽  
Fourth Generation ◽  
Network Information ◽  
Ieee 802.21 ◽  
Research Areas ◽  
Media Independent Handover ◽  
The Media

Fourth Generation wireless networking (4G network) is expected to provide global roaming across different types of wireless and mobile networks. In this environment, roaming is seamless and users are always connected to the best network. Moreover, 4G networks will be packet switched systems entirely based on the IPv6 protocol. The essentiality of Quality of Service (QoS) and the heterogeneous nature of 4G pose high demands onto the mobility management technology. Due to this, one of the most challenging research areas for the 4G network is the design of intelligent mobility management techniques that take advantage of IP-based technologies to achieve global roaming among various access technologies. In order to address the issue of heterogeneity of the networks, IEEE 802.21 working group proposed Media Independent Handover (MIH). The scope of the IEEE 802.21 MIH standard is to develop a specification that provides link layer intelligence and other related network information to upper layers to optimize handovers between heterogeneous media. The IEEE 802.21 group defines the media independent handover function that will help mobile devices to roam across heterogeneous networks and stationary devices to switch over to any of the available heterogeneous networks around it.

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