Communication Networks Laboratory

The Communication Networks Laboratory highlights the interests and activities of its two principals Ljiljana Trajkovic and Stephen Hardy. Current activities encompass wireline and wireless data networks, with emphasis on traffic modeling and characterization, simulation of network protocols and algorithms, and analysis of network performance.

Research projects


DAWN

  • Data mining on billing traces of wireless network
  • Modeling and characterization of traffic in public safety wireless networks
  • Modeling and performance analysis of public safety wireless networks
  • Adapting ad hoc network concepts to land mobile radio systems
  • Wavelet-based analysis of long-range dependent video traces
  • Wavelet analysis of traffic traces and packet loss
  • TCP session analysis and modeling of hybrid satellite-terrestrial Internet traffic
  • Measurement and analysis of hybrid satellite-terrestrial Internet traffic
  • Spectral analysis of the Internet topology
  • Understanding network customers' behavior from billing traces
  • Using AutoClass for exploring demographic structure of Internet users


    ICON

  • Modeling of TCP with active queue management schemes
  • Characterization of a simple communication network using Legendre transform
  • Delay and throughput differentiation mechanism for non-elevated services
  • Simulation of loss patterns in video transfers over UDP and TCP
  • Analysis and simulation of wireless data network traffic


    SIMON

  • Streaming video and audio content over mobile WiMAX networks
  • Streaming video content over IEEE 802.16/WiMAX broadband access
  • Integrating ns-BGP with the ns-2.34 network simulator(software available)
  • Integrating ns-BGP with the ns-2.33 network simulator(software available)
  • Improving the Performance of the Gnutella Network(software available)
  • BGP Route Flap Damping Algorithms (software available)
  • BGP with an Adaptive Minimal Route Advertisement Interval (software available)
  • Implementation of BGP in a Network Simulator(software available)
  • Selective-TCP for wired/wireless networks (software available)
  • TCP over wireless networks (software available)
  • Modeling and performance evaluation of a General Packet Radio Services (GPRS) network using OPNET
  • Simulation of General Packet Radio Services (GPRS) network system using OPNET
  • Traffic engineering prioritized IP packets over Multi-Protocol Label Switching (MPLS) network
  • Enhancements and performance evaluation of wireless local area networks
  • Route optimization of mobile IP over IPv4
  • Implementation and performance simulation of VirtualClock scheduling algorithm in IP networks
  • Simulation of quality of service parameters in IP networks
  • OPNET modeling and simulation of CDPD MAC layer behavior
  • OPNET modeling and simulation of Deficit Round Robin scheduling algorithm for IP networks

    Various projects

  • Performance measurements of multimedia traffic in an IP over ATM local area network
  • How to evaluate field test performance for a CDMA2000 handset
  • Convergence behavior of RIP and OSPF network protocols
  • Hardware implementation of a high-speed symmetric crossbar switch
  • Simulation of transistor circuits: effect of model parameters

    • OPNET-specific projects

    Professor Emeritus R. H. Stephen Hardy

    Research projects

    Professor Emeritus William A. Gruver

    Research projects