Mobile Multiprotocol Label Switching Research Articles

Mobility management in packet transport networks for network convergence

AbstractMobility management and quality of service (QoS) are two of the most important goals in the present and future development of wireless networks. These tasks involve not only the wireless domain but also the access network that interconnects mobile devices with the Internet. This emerging topic is known as fixed mobile convergence. The intention of this convergence is the integration and creation of a unified infrastructure from fixed and wireless mobile networks. In this converged infrastructure, users can move across networks and access services seamlessly. In this paper, we present a study on recent advances and open research issues on mobility protocols in conjunction with multi‐protocol label switching (MPLS)‐based access networks. Various mobile management protocols and their interaction with the access network are briefly introduced. A new architecture called integrated proxy mobile MPLS transport profile is also outlined to provide the highest integration level, QoS and high rates of mobility to achieve fixed mobile convergence. Copyright © 2013 John Wiley & Sons, Ltd.

Hierarchical wireless mobile MPLS mechanism using foreign tracking agent based on M∕G∕1 with capacity c queueing model

Within the MultiProtocol Label Switching (MPLS) network, packets with the same forwarding equivalent class can easily be identified by their attached label value. The cross-layer topology associates with access protocol and IP mobility agents. The necessity of agent discovery is reduced and an approach to enhance handoff efficiency proposed. This efficient handoff scheme is performed by a foreign tracking agent (FTA) that plays a role as an administrator of a hierarchy that consists of some foreign agents (FAs) to localise the routing operation of forwarded packets. To analyse the performance of a hierarchical mobile MPLS network, the system is modelled as an M/G/1 system with capacity c, where c represents the number of FAs that can be administered for an FTA. The mean delay time of the FTA to process the forwarding of packets is analysed using M/M/1 with capacity c queueing model. The minimum number of FAs that can be administered for an FTA is derived to improve network performance by minimising mean delay time.