Scope of Department interests is theoretical and application oriented research in modern telecommunication networks and systems, that is Next Generation Networks NGN , and therein concerning Next Generation Internet NGI , providing multimedia services with guaranteed and differentiated quality. Department research concerns primarily the technologies of wire line and optical access and transport of information. Research is conducted on the Voice over IP (VoIP) technology, quality of service and telecommunication traffic engineering. The department is also involved in the estimation of the network reliability, theory and algorithms of telecommunication and biomedical signals digital processing, modems and transmodulators with digital implementation, linear and non-linear digital filters, and also protection of multimedia data (in particular – pictures) using digital watermarking.

Research conducted in the Department concerns particular subjects such as:

  • design of network, nodes and systems resources for technologies such as: TDM, IP, MPLS, GMPLS, DWDM including the reliability aspect,
  • convergence of services, technology and operator networks,
  • traffic engineering supporting the multimedia service quality,
  • modelling of systems servicing streams and service classes with differentiated quality,
  • signalling systems and communication protocols (DSS1, SS7 with ISUP and INAP, SIP, H.323, MGCP, MEGACO/H.248),
  • xDSL (ADSL, VDSL) systems applications in broadband multiservice access network,
  • xDSL system integration with transport network environment based on Ethernet standard (EoVDSL),
  • digital signal processing in telecommunication (using polar representation in analysis and synchronization of digital modulations),
  • estimation and transmodular transformation of polar representation of bandpass and complex signals used in applications of digital telecommunication,
  • multirate signal processing and herein design of fractional delay filters and their applications in sampling rate change algorithms,
  • digital watermarking of pictures using asymmetrical algorithms, where marking is executed using secret key and each user can check the presence of the sign using the public key,
  • protection of digital information transmission using redundant coding, cryptography and steganography.

Department activity is very well suited to demands for telecommunication in the era of information technology, which is the basic element of Global Information Infrastructure for information society.

Information regarding Department projects can be found on page Projects.