This paper describes an automatic switching of modulation method to reconfigure transceivers of Software Defined Radio (SDR) based wireless communication system. The programmable architecture of Software Radio promotes a flexible implementation of modulation methods. This flexibility also translates into adaptively, which is used here to optimize the throughput of a wireless network, operating ...

Reconfigurable resources are more and more envisaged inside System-on-Chip designs for facing with embedded computing power constraints. Moreover, a high level of flexibility of such platforms is required and can only be achieved with embedded software and real-time operating systems (RTOS) services. Unfortunately, this leads to very complex and heterogeneous platforms that cannot be easily val...

Space domain applications no longer depend solely on specially developed hardware and software. The specific requirements of this highly demanding application domain are being increasingly met by commercially available components. One software component which is definitely making its way into space projects is the real-time operating system (RTOS). Apart from reducing the cost of development an...

Fixed networks of limited resource heterogeneous computers need to allow applications to access remote devices in order to overcome any local resource deficiencies. Current operating systems would use a file system, network stack and middleware to implement such access but the volume of functionality involved can be a barrier to performance. This paper examines the 2.4 series Linux kernel to sh...

Traditional operating systems present fixed, high-level abstractions to application developers and users. These are part of standard APIs, such as POSIX or X/OPEN, which are typically implemented as a thin library layer on top of monolithic kernels. Recent efforts in operating system research, however, have focussed on providing more flexibility and new functionality to applications by lowering...

Large Technical Systems (LTSs) such as information networks and transport systems are difficult to change when they are entrenched and lack flexibility. The paper argues that standards enhance system flexibility. This line of argument is explored and elaborated into a conceptual framework that aims to support practices and policies of flexible LTS design. First, the behavioral scope of standard...

Water distribution networks face several problems related to leakages, where the pressure control strategy is a common practice for water loss management. Small-scale hydropower schemes, where pumps as turbines replace pressure reducing valves, can be considered an interesting technical solution, which ensures both economic convenience and system flexibility. Due to the water networks’ variable...