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This paper examines the international, inter- organizational collaboration processes for the development of cognitive radio, which will be at the basis of potentially profound changes in the telecommunications value network, as well as its functional architecture, cost and value structure and the eventual value proposition of any services deployed in such a(More)
Recent advances in wireless communication theory and semiconductor technology brought wireless to virtually every aspect of our life, and this trend is expected to continue to increase in the future. Unfortunately, as the number of wireless applications grows, the same scarce spectrum is reused over and over again, resulting in increased interference, which(More)
Within the field of cognitive radio many of recent attention has gone to to specific use cases such as the so-called TV White Spaces (TVWS). Within this use case, there has been much discussion on which enabling technology would be appropriate to allow secondary use of the TV band. There seems to be a growing consensus that a geolocation database can(More)
The concept of flexible spectrum management, which refers to a set of new and dynamic procedures and techniques for obtaining and transferring spectrum usage rights and dynamically changing the specific use of frequencies, plays an important role in fully exploiting the advantages of cognitive, reconfigurable networks and terminals. This paper provides an(More)
Several catabolic states (sepsis, cancer, etc.) associated with acute inflammation are characterized by a loss of skeletal muscle due to accelerated proteolysis. The main proteolytic systems involved are the autophagy and the ubiquitin-proteasome (UPS) pathways. Among the signaling pathways that could mediate proteolysis induced by acute inflammation, the(More)