Encontrados 8 documentos, a visualizar página 1 de 1
A QoS-enabled resource management scheme for F-HMIPv6 micro mobility approach
Lopes, Nuno Vasco; Nicolau, Maria João; Santos, AlexandreIn the near future, wireless networks will certainly run real-time applications with special Quality of Service (QoS) requirements. In this context micro mobility management schemes such as Fast Handovers over Hierarchical Mobile IPv6 (F-HMIPv6) will be a useful tool in reducing Mobile IPv6 (MIPv6) handover disruption and thereby to improve delay and losses. However, F-HMIPv6 alone does not support QoS requirem...
Performance analysis of a new mobility/QoS-aware architecture
Lopes, Nuno Vasco; Nicolau, Maria João; Santos, AlexandreIdeally, the future Internet must provide acceptable Quality of Service (QoS) to mobile users that are running real-time applications and are moving across different access points at high speeds. The user mobility presents a great challenge to the network layer in order to maintain users on going connections. Currently, the Internet protocol that manages the user mobility at the network level is the Mobile Inte...
A QoS-aware architecture for mobile internet
Lopes, Nuno VascoTese de doutoramento Informática ; Hoje em dia, as pessoas pretendem ter simultaneamente mobilidade, qualidade de serviço e estar sempre connectados à Internet. No intuito, de satisfazer estes clientes muito exigentes, os mercados das telecomunicações estão a impor novos e dificeis desafios às redes móveis, através da demanda, de heterogeneidade em termos de tecnologias de acesso rádio, novos serviços, niveis ...
A QoS-enable solution for mobile environments
Lopes, Nuno Vasco; Nicolau, Maria João; Santos, AlexandreThis paper addresses the problem of designing a suitable Quality of Service (QoS) solution for mobile environments. The proposed solution deploys a dynamic QoS provisioning scheme able to deal with service protection during node mobility within a local domain, presenting extensions to deal with global mobility. The dynamic QoS provisioning encompasses a QoS architecture that uses explicit and implicit setup mec...
A micro-mobility solution for supporting QoS in global mobility
Lopes, Nuno Vasco; Nicolau, Maria João; Santos, AlexandreToday, users want to have simultaneously mobility, Quality of Service (QoS) and be always connected to Internet. Therefore, this paper proposes a QoS micro-mobility solution able to provide QoS support for global mobility. The solution comprises enhancements in the mobility management of Mobile IPv6 (MIPv6) and in the resources management of Differentiated Services (DiffServ) QoS model. The mobility management ...
QoS-aware architecture for FHMIP micromobility
Lopes, Nuno Vasco; Nicolau, Maria João; Santos, AlexandreWireless networks will certainly run applications with strict QoS requirements and so, micro-mobility protocols such as fast hierarchical mobile IPv6 (FHMIP) are useful tools to accomplish this new feature. The FHMIP is an effective scheme to reduce Mobile IPv6 handover disruption, however it does not support application's QoS requirements. Therefore, in order to provide QoS guarantees for real-time application...
Evaluating rate-estimation for a mobility and QoS-aware network architecture
Lopes, Nuno Vasco; Nicolau, Maria João; Santos, AlexandreIn a nearby future wireless networks will run applications with special QoS requirements. FHMIP is an effective scheme to reduce Mobile IPv6 handover disruption but it does not deal with any other specific QoS requirement. Therefore new traffic management schemes are needed in order to provide QoS guarantees to real-time applications and this implies network mobility optimizations and congestion control support...
Efficiency of PRI and WRR DiffServ scheduling mechanisms for real-time services...
Lopes, Nuno Vasco; Nicolau, Maria João; Santos, AlexandreThe next generation of mobile phones will be probably all-IP based enabling users to access Internet services. In order to make this possible a satisfactory quality of service, at least equal to the fixed Internet, must be ensured. To achieve this goal an end-to-end QoS system must be constructed. Another fact is the dominance of IP over other technologies due, in large measure, to its characteristic of working...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||