Mobile devices are connecting to the Internet through an increasingly heterogeneous network environment. This connectivity via multiple types of wireless networks allows the mobile devices to take advantage of the high speed and the low cost of wireless local area networks and the large coverage of wireless wide area networks. In this context, we propose a new handoff framework for switching se...

Properly designed handover procedures in cellular wireless systems are essential for maintaining continuity of a call in progress and for minimizing the probability of forced call termination and signaling and switching load on the network. In this paper, we model a channel exchange scheme that involves exchange of channels between two mobiles that are moving in opposite directions across the h...

|A Dynamic Programming formulation is used to obtain an optimal strategy for the handoo problem in cellular radio systems. The formulation includes the modeling of the underlying randomness in received signal strengths as well as the movements of the mobile. The cost function is designed such that there is a cost associated with switching and a reward for improving the quality of the call. The ...

We present PAN-on-Demand, a self-organizing wireless personalarea network (PAN) that balances performance and energy concerns by scaling the structure of the network to match the demands of applications. PAN-on-Demand autonomously organizes co-located mobile devices with one or more commodity radios such as Bluetooth and Wi-Fi to form a network that enables data sharing among those devices. It ...

Delivering information across sensory modalities is often supported by the independent nature of multi-modal information processing, which assumes that there is no interference between tasks and thus no degradation in performance. However, research in cognitive psychology shows that visual and auditory perceptual processing is closely linked. Problems related to memory and cognitive workload ar...

Through investigating factors that influence consumers to make a transition from online to mobile banking, this empirical study shows that relative attitude and relative subjective norm positively motivated respondents to switch from Internet to mobile banking while relative perceived behavior control deterred respondents from transitioning. Empirical results also demonstrated that Internet ban...

The development of mobile telephone communication technology and its availability on a worldwide scale has been widely recognised as a force for good. There have been, however, concerns about the possible harmful effects of prolonged exposure to this technology. Two articles in this issue investigate possible harmful effects of mobile telephone use. Seckin and colleagues investigate the possibl...

We combine a “hybrid” force/position control scheme with a potential field approach into a novel method for collision recovery and navigation in unknown environments. It can be implemented both on manipulators and mobile robots. The use of force sensors allows us to locally sense the environment and design a dynamic control law. Multiple Lyapunov functions are used to establish asymptotic stabi...

A new behavior-based method is proposed for way-finding of a mobile robot in unknown environments with dead-ends. A standard fuzzy logic (FL) algorithm directs the robot towards its target i.e.; actual or virtual, while avoiding obstacles by means of steering and velocity control. At top of the FL controller, a switching strategy is developed for virtually redirecting the target when the robot ...

This paper presents the development of GSM-based control home appliances for smart home system. The main aim of the prototype development is to reduce electricity wastage. GSM module was used for receiving short message service (SMS) from user’s mobile phone that automatically enable the controller to take any further action such as to switch ON and OFF the home appliances such as light, aircon...