OVER THE LAST 25 years the United States has become increasingly dependent on space-based systems to support its military forces, and this trend is likely to continue for some time. Satellite systems have become an integral part of nuclear deterrence by providing strategic warning of an attack, tactical warning of missile launches, reliable communications between command authorities and nuclear...

Charting the :volution and strategic direction of wireless communications networks in times of great change to maintain a competitive advantage for a wireless carrier is very complex. The new economy has created a new competitive landscape with much uncertainty that is affecting the networkplanningprocess. Several reasons account for the changes taking place in many industries’ competitive land...

This paper is in response to the National Science and Technology Council (NSTC) Committee on Information and Communications R&D (CIC) call for white papers on the CIC's Strategic Implementation Plan for America in the Age of Information. We agree with the identiication of strategic focus areas and the need for eecient coordination of activities. However, the Strategic Plan provides only a high ...

Reliable distributed systems involve many complex protocols. In this context, protocol composition is a central concept, because it allows the reuse of robust protocol implementations. In this paper, we describe how the Strategy pattern has been recursively used to support protocol composition in the BAST framework. We also discuss design alternatives that have been applied in other existing fr...

The purpose of this work is to study and evaluate the limitations of using acoustic communications in the vicinity of artificial reefs. By placing hydrophones and transmitters in different strategic locations we have studied the performance of this technology in confined spaces. The ultimate goal of this work is to provide information for the proper design of acoustic communication systems to m...

Background on Cellular Communications AutoCell is a system developed to assist in the operation and management of cellular mobile networks operated by Singapore Telecom (ST). Its deployment is in line with ST’s strategic move to introduce intelligent software into its operations. With the help of AI concepts and techniques, the system has enhanced the operational efficiency, network capacity an...

BACKGROUND Academic medicine is in a state of dramatic transformation. For this reason strategic thinking is the most essential part of educational planning. The main purpose of the present study was developing the strategic educational planning of Ophthalmology in Iran from 2007 to 2010 METHODS A qualitative investigation using focus group discussion has been implemented successfully for dev...

This paper considers an enhancement to multi-cell processing for the uplink of a cellular system, whereby the mobile stations are allowed to exchange messages on orthogonal channels of fixed capacity (conferencing). Both conferencing among mobile stations in different cells and in the same cell (inter and intra-cell conferencing, respectively) are studied. For both cases, it is shown that a rat...

When numerous agents interact, conflicts may arise. To solve them, different ways canbe used such as cooperation, voting systems or negotiation. The one which interests us in thisthesis is contract-based negotiation over resources. The aim of our work is to conceive a general negotiation model (called GeNCA : GenericNegotiation of Contracts API), and to give an implementation of it....

T oday's manufacturing enterprise, whether it produces consumer goods or weapons systems , must often juggle a range of conflicting demands. Smaller lot sizes, increased product flexibility, higher product quality, decreased delivery time, and smaller profit margins are typical of the ambitious goals in many such organizations. Through it all, the enterprise must consistently aim for the five R...