Abstmcr-CDMA cellular systems use soft handoff. Although the capacity of CDMA systems is interference-limited in nature, channel shortages may occur because soft handoff uses several channels simultaneously. To cope with this problem, we propose an improved handoff method which borrows channels from stationary calls participating in soft handoff and allocates the borrowed channels to handoff re...

In this study, an adaptive handoff algorithm with a dynamic hysteresis value, based on the distance between the mobile station and the serving base station, is proposed for cellular communications. Handoff probability is calculated to evaluate handoff algorithms analytically. The proposed handoff algorithm is compared with an algorithm with fixed hysteresis, an algorithm using both threshold an...

Designing of heterogeneous Networks involves several interworking issues, such as seamless handoff or roaming, mobility management, security and charging problems. Among these interworking items, the issue of seamless handoff is of great importance for guaranteeing service continuity and Quality of Service. In this paper, we propose a seamless handoff scheme with minimum handoff delay and low p...

Efficient handoff algorithms cost-effectively enhance the capacity and Quality of Service (QoS) of cellular systems. This research presents novel approaches for the design of high performance handoff algorithms that exploit attractive features of several existing algorithms, provide adaptation to dynamic cellular environment, and allow systematic tradeoffs among different system characteristics...

BACKGROUND Efforts to standardise data elements and increase the comprehensiveness of information included in patient handovers have produced a growing interest in augmenting the verbal exchange of information with written communications conducted through health information technology (HIT). OBJECTIVE The aim of this perspective is to offer recommendations to optimise technology support of ha...

As mobile computing increases in prevalence and popularity, it is becoming increasingly important to have a vertical handoff solution, which can perform a vertical handoff seamlessly and smartly. In this paper, we propose a Smart Decision Model to decide the “best” network interface and “best” time moment to handoff. A score function is utilized in the model to make the smart decision based on ...

Mobile ad hoc Network (MANET) has a challenging task because of the dynamic and infrastructure less nature of the network. This dynamic nature leads to the difficulty in handoff, addressing, routing and data delivering process. For getting good QoS, better flexibility, effective and efficient handoff process in this dynamic network need better handoff mechanism for avoiding any discontinuity, p...

Mobile IPv6 provides mobility support for hosts connecting to the Internet, it solves addressable problems of the mobile terminal, and the mobile terminals can obtain network services without changing IP addresses. But MIPv6 can introduce substantial network expenses and lengthy handoff delay during the mobile handover process, meanwhile, more and more delay sensitive real-time applications req...

nent of mobile cellular communication systems. Mobility causes dynamic variations in link quality and interference levels in cellular systems, sometimes requiring that a particular user change its serving base station. This change is known as a handoff. In first-generation cellular systems like the Advanced Mobile Phone System (AMPS) [1, 2], handoffs were relatively simple. Second-generation ce...