The convergence between the Internet and telecommunication systems promotes an integrated scenario characterized by different flavors of mobility. Users can connect to the network from ubiquitous points of attachment and wireless portable devices can roam by maintaining continuous connectivity. Novel middleware technologies based on code mobility has the potential to enhance service provisionin...

IPv6, the successor of current IP (IPv4), is now under development. Mobility support is one of the requirements for IPv6. This paper proposes a protocol for mobility support in IPv6. The proposed protocol is based on the mechanisms of Virtual Internet Protocol (VIP), which provides mobility in IPv4. Two Hop-by-Hop options are added to support mobility, one for user data and another for control....

The common thread that characterizes energy efficient mobility systems for smart cities is their interconnectivity which enables the exchange of massive amounts of data; this, in turn, provides the opportunity to develop a decentralized framework to process this information and deliver real-time control actions that optimize energy consumption and other associated benefits. To seize these oppor...

Standard IP mobility management (IP-MM) commonly known as Mobile IP, presents a set of technical challenges in performance and scalability, as the mobile host (MN) varies the handoff rate, due to its mobility pattern, between successive wireless points of attachment; these manifest themselves primarily as increased signalling between the MN and its peers. In addition, they encompass sources of ...

In this paper, we investigate the energy saving problem in mobile ad hoc network, and give out an improved variable-range transmission power control algorithm based on minimum spanning tree algorithm (MST). Using previous work by Gomez and Campbell [1], we show that in consider of node’s mobility, the previous variable-range transmission power control based on minimum spanning tree algorithm ca...

Mobile Code (MC) technologies provide appealing solutions for the development of Internet applications. For instance, Java technology facilitates dynamic loading of application code Pom remote servers into heterogeneous clients distributed all over the Internet. However, executing foreign code that has been 1oadedfi.om the network raises signixcant security concerns which limit the diffusion of...

In this paper we present a multi-cell analytic model for multi-class cellular networks. We investigate the effects subscriber mobility has on bandwidth control strategies when the network supports multiple classes of subscribers having different bandwidth requirements. We introduce control strategies from non-mobile networks and examine them in a mobile environment. The expressions for call blo...