Learn More
—Real-time applications such as e-commerce, flight control, chemical and nuclear control, and telecommunication are becoming increasingly sophisticated in their data needs, resulting in greater demands for real-time data services that are provided by real-time databases. Since the workload of real-time databases cannot be precisely predicted, they can(More)
With the increasing demand of real-time services, the applications become more complex in their data needs. Real-time databases usually provide the management of data for real-time data services. However the workload applied to dynamic systems is not always known and the database might face overloads. Then deadlines can be missed and the freshness of the(More)
In recent years a new class of soft real-time applications operating in unpredictable environments has emerged. Typical for these applications is that neither the resource requirements nor the arrival rates of service requests are known or available a priori. It has been shown that feedback control is very effective to support the specified performance of(More)
In applications such as web-applications, e-commerce, and engine control, the demand for real-time data services has increased. In these applications, requests have to be processed within their deadlines using fresh data. Since the workload of these systems cannot be precisely predicted, they can become overloaded and as a result, deadline and freshness(More)
Recently, cheap and large capacity non-volatile memory such as flash memory is rapidly replacing disks in embedded systems. While the access time of flash memory is highly predictable, deadline misses may occur if data objects in flash memory are not properly managed in real-time embedded databases. Buffer cache can be used to mitigate this problem.(More)
1. Background Lately the demand for real-time data services has increased. Applications used in manufacturing, web-servers, e-commerce etc. are becoming very sophisticated in their data needs. In these applications it is desirable to process user requests within their deadlines using fresh data [4]. Since the external environment is constantly changing, it(More)
—Radio network management simplification concerns to some extent the removal, not the simplification, of tasks. In this paper we present an approach for automatic network management in 3G Long Term Evolution (LTE), namely, methods for automatic configuration of locally-unique physical cell identities and neighbor cell relation lists. We show that these(More)