IEEE Symposium on Computers and Communications (ISCC'07)
Sponsored by IEEE Computer Society and IEEE Communications Society
July 1-4, Aveiro, Portugal
The boundaries between computing and communication have blurred over the last decade. We have reached the point where networks must respond to changes in the nature of traffic by adjusting their control planes and computing infrastructure rather than by restructuring the underlying network technology and topology. This talk describes the kind of changes to infrastructure necessary to support rapid changes in the nature and flows of traffic, including changes to control planes, content delivery and network management.
New access networks such as MANs, HANs, PANs, BANs, NEMOs and Ad hoc networks are emerging. These new networks are adding to the existing fixed, cellular, broadcast and local area networks creating a huge heterogeneous network environment. In addition, it is expected that the future mobile user will demand access to any service/content at anywhere and any time in a seamless, reliable and secure manner. The challenge is how to support the user's demands in such a heterogeneous environment. This talk will first describe the concepts of convergence, integration and inter-working of multiple heterogeneous radio access networks. It will then discuss the associated degrees of coupling between these networks. It will also address how to ensure the establishment, maintenance and termination of end-to-end QoS, security and seamless mobility in a heterogeneous radio access network environment. As an example, the design of a wireless access network in the context of end-to-end networking will then be given. Finally, it will describe a new business model for such an environment.
An emerging direction in advanced commercial networks and services is IMS, with its promise of delivering any application over any network to any device. There are significant gaps between the vision of IMS and the state of its current embodiment as well as recognized business and technical challenges which must be overcome. The talk will summarize the current status of IMS based networks and services and offer a potential model for the evolution of all IP based networks which is compatible with viable business models and the continuing progress in the underlying technologies.
During the last decade we have seen dramatic progress in communication technologies. We can transport bits with ever higher speed across wired and wireless networks. However, to some extend we are still using more or less the same communication services as 10 years ago, i.e. voice calls, email, web, file transfers and so on. On the other hand the usability of newly evolving communication services leaves much to be desired, severely limiting the take-up of new services. Many new services are only for experts or at least small user groups, enforcing the "digital divide". The presentation argues that the big challenge ahead is to improve usability and utility of communication services, so that we can take much better advantage of the rapidly evolving communication infrastructure. Key components to improve the utility of communications services are
Nokia Siemens Networks started its operations on April 1, assuming a leading position in the communications infrastructure market. The new company, owned by Nokia and Siemens, holds a top three position in the industry (based on 2006 pro-forma revenues of EUR 17.1 billion) and is ideally positioned to tap growth opportunities in both the wireless and fixed communications markets. Nokia Siemens Networks has approximately 600 customers and operates in about 150 countries and is headquartered in Espoo, Finland. Nokia Siemens Networks Portugal SA, which is the Portuguese branch of NSN, holds a laboratory for research and testing, which currently supports pure and applied research in several areas, such as next generation packet solutions and advanced network solutions across different areas, e.g., optical networks as well as protocols/network management for fixed and mobile applications.
This talk summarizes the research activities carried out by the Research Group at Nokia Siemens Networks Portugal S.A. in collaboration with both Universities and Research Institutes. These activities cover various aspects of advanced modulation formats, very high speed electronic dispersion equalization, all optical wavelength conversion, burst switching, routing and wavelength assignment in optical networks.