In the past, our proposed HCoP-B has achieved route optimization and resolved the RO-storm problem for handoffs of the nested mobile network. However, because HCoPB was a pure layer three, i.e., network layer, approach which handoff operations were performed after the layer two, i.e., data link layer, link breaks, it still suffered from a long handoff latency and serious packet losses. In this ...

The Mobility in wireless cellular communication systems is its backbone so as to enhance the quality of service and maintain the continuous service. Handoff is an important task in maintaining the continuity of call in cellular systems and its failure can result in ongoing call termination. So handoffs are necessary for providing an enhanced QoS (Quality of Service) to users and provide a ubiqu...

In view of the proliferation of mobile applications, a universal seamless handoff solution across wireless domains is becoming increasingly important. While wired connections usually provide high speed, reliable access to the Internet, wireless networking technologies enable users to access customized Internet services even when they are moving. A seamless handoff solution with both low latency...

A Mobile Node (MN) continuously moves in heterogeneous networks. When connections need to migrate between heterogeneous networks for performance and high-availability reasons, seamless vertical handoff is necessary first step. Everyone around the world would like to be connected seamlessly anytime anywhere through the best network. When MN changes its point of access technology handoff occurs. ...

Micro-mobility protocols have been proposed to provide seamless local mobility support. This paper focuses on the performance of the handoff schemes of two candidates for micro-mobility protocols, namely HAWAII and Cellular IP. For each handoff scheme, a simple analytical model is developed for the evaluation of two characteristic performance measures: the packet loss probability during handoff...

PURPOSE The aims of this systematic review were: (1) to analyze the content overlap between nurse and physician hospital-based handoff documentation for the purpose of developing a list of interdisciplinary handoff information for use in the future development of shared and tailored computer-based handoff tools, and (2) to evaluate the utility of the Continuity of Care Document (CCD) standard a...

This research paper is based on simulation and analysis of QOS parameters for hard and soft handoffs. Performance of UMTS scenario is evaluated for various multimedia applications like FTP and HTTP. To accomplish the task of simulation OPNET TM 14.5 modulator used. From results, soft handoff is better than hard handoff because soft handoff support connections during mobility and handoff.

In a code-division multiple-access cellular system, the soft handoff with macrodiversity is known to increase the number of available channels in each cell from the interference-reduced radio environment. This capability, however, also incurs extra load on the system due to the increase in the number of channels occupied and reserved for macrodiversity. The objective is to evaluate the associat...

In cognitive radio networks, the secondary users (SUs) switch the data transmission to another empty spectrum band to give priority to primary users (PUs). In this paper, channel switching in cognitive radio mobile ad hoc networks (CR-MANETs) through an established route is modeled. The probability of channel availability in this route is calculated based on the PU's activity, SU's mobility, an...

We present a seamless handoff solution, called Universal Seamless Handoff Architecture (USHA). USHA is simple and requires minimal modification to the current Internet infrastructure. Therefore, it is instantly ready for real-world deployment. Using testbed experiments, we evaluate USHA by observing TCP (FTP downloading) behavior in various vertical handoff scenarios. The results shows that USH...