Voice over Internet Protocol (VoIP) over Wireless Local Area Networks (WLANs) is an important application of WLANs and it has gained more and more attention recently. In this article, we analyse the maximum number of VoIP calls supportable in a WLAN and propose a new call admission control strategy, namely, Adaptive Transmission Interval Call Admission Control (ATICAC) to enhance VoIP calls in ...

This paper is concerned with optimal control of linear backward stochastic differential equations (BSDEs) with a quadratic cost criteria, or backward linear-quadratic (BLQ) control. The solution of this problem is obtained completely and explicitly by using an approach which is based primarily on the completion-of-squares technique. Two alternative, though equivalent, expressions for the optima...

This case study illustrates the usefulness of the DNA fingerprinting method in biobank quality control (QC) procedures and emphasizes the need for detailed and accurate record keeping during processing of biological samples. It also underlines the value of independent third-party assessment to identify points at which errors are most likely to have occurred when unexpected results are obtained ...

In this paper, we introduce a configurable Internet browser for accessing Internet using networks with low-quality connection. The goal is to build user-configurable Internet browser from existing software. We propose a new model for accessing Internet that allows a user to keep accessing the Internet even in very low speed and/or with temporary disconnection. In this model, we integrate concep...

The authors propose a way to improve the quality of results generated through the fragile clinical laboratory infrastructure in resource poor counties in Africa and elsewhere.

In today’s globalized world, it is increasingly important for companies to gain knowledge about international markets and to understand the differences and similarities between international users. As a result, international user studies have become more common. However, they still pose a challenge for most companies. In this paper, we present the results of an empirical investigation of how co...

This paper continues some ideas from a preceding paper of the author, in which only point-wise initial data are considered. Here, the constraints on state variables and control involve functional initial data, leading to a modified control problem.

Abstract. This paper illustrates a practicable approach to reliability evaluation for highly reliable software systems based on the analysis of their operational experience and demonstrates its applicability to the control software of a gearbox system. The investigations were carried out within a cooperation of academia and automotive industry. The article also elaborates on the possibility of ...

This short paper deals with the classical finite-horizon linear-quadratic regulator problem with the terminal state constrained to be zero, for both continuous and discrete-time systems. Closed-form expressions for the optimal state and costate trajectories of the Hamiltonian system, as well as the corresponding control law, are derived through the solutions of two infinite-horizon LQ problems,...