In most adaptive control algorithms, parameter estimate errors are not guaranteed to converge to zero. This lack of convergence adversely affects the global performance of the algorithms. The effect is more pronounced in control problems where the desired reference setpoint or trajectory depends on the system's unknown parameters. This paper presents a parameter estimation routine that allows e...

Current high-performance processors suffer from soft error susceptibility issues which are generated in twofold aspects. The electronic noises, which usually come from large power supplies, strong radiation, or high-energy particle strikes [3], may invert some logic bits of processor structures, introducing transient faults (or equally soft errors) into the system. On the other hand, there is a...

Despite the increasing computational power of modern computers, many large, distributed software systems still suffer from performance problems today. To avoid designrelated performance problems, model-driven performance prediction methods analyse the response times, throughputs, and resource utilisations of systems under development based on design documents before and during implementation. F...

The job-shop scheduling problem (JSSP) is a well known difficult NP-hard problem. Genetic Algorithms (GAs) for solving the JSSP have been proposed, and they perform well compared with other approaches [1]. However, the tuning of genetic parameters has to be performed by trial and error. To address this problem, Sawai et al. have proposed the Parameter-free GA (PfGA), for which no control parame...

In this paper, we define a new performance parameter, named PPT, for 802.11 DCF, which binds successful transmission probability and saturation throughput together. An expression of optimal minimum contention windows (CWmin) is obtained analytically for maximizing PPT. For simplicity, we give a name DCF-PPT to the 802.11 DCF that sets its CWmin according this expression. The simulation results ...

A Vehicular Ad-Hoc Network is a kind of ad-hoc network, and is a self-configuring network of vehicular routers connected by wireless links. Vanet presents new and promising field of research, development and standardization. Vehicular Ad-Hoc Network is a wireless network without infrastructure. Reliable broadcasting in vehicular ad-hoc networks is one of the keys to success for services and app...

In this paper, we introduce a new d-Spline based Incremental Performance Parameter Estimation method (IPPE ). We first define a fitting function d-Spline, which has high flexibility to adapt given data and can be easily computed. The complexity of d-Spline is O(n). We introduce a procedure for incremental performance parameter estimation and an example of data fitting using d-Spline. We applied...

The Quality of Service (QoS) provides a better performance in networking environment like MANET and VANET in the current development scenario. In these fields the topology is dynamic in nature changing frequently with respect to time. Thus it creates many challenging issues too. In this paper, we have investigated the performance of MANET and VANET based on QoS, where throughput is taken as the...

This paper explores the application of evolutionary techniques to the design of novel sounds and their characteristics during performance. It is based on the “selective breeding” paradigm and as such dispensing with the need for detailed knowledge of the Sound Synthesis Techniques involved, in order to design sounds that are novel and of musical interest. This approach has been used successfull...

Long Range Dependent (LRD) network tra c does not behave like the tra c generated by the Poisson model or other Markovian models. From the network performance point of view, the main di erence is that LRD tra c increases queueing delays due to its burstiness over many time scales. LRD behavior has been observed in di erent types and sizes of networks, for di erent applications (eg. WWW) and di ...