Wireless communications and computing is one of the fastest growing areas of the networking industry. Wireless communications extends the capabilities present in the fixed networks to include location- and terminal- independent information transport and computing. We are developing new protocols and architectures for various types of wireless networks and mobile edge computing. The research topics of interest include wireless Internet, multi-hop wireless networks, mobility management, network architecture, control and signaling, hand-off, multi-access methods, spread spectrum techniques, etc.Please see Project SOPRANO for additional research activities.

Modeling efforts in this area include mathematical and simulation characterization of channels and networks. Specifically our research includes characterizing propagation media as multi-path fading and impairments in communications channel as well as modeling of networks for their single or aggregate traffic and admission control.

The objective of the research in high performance internetworking is to examine network architectures, network control and routing algorithms that are applicable to next generation Internet. Of interest are traffic engineering and load balancing, signaling and routing, and modeling and perforamance analysis. Our efforts in the past inlcuded helping pave the way for industry to adopt Multiprotocol Labe switching in thier next generation Internet.

Representation of digital video for a number of applications ranging from video teleconferencing to HDTV is getting significant attention. Specifically, the capability of variable bit rate (VBR) transport of encoded video signals over Internet has resulted in research problems on multiresolution and hierarchical representation of video signals.

The BRIDGES project provides an innovative way of empowering scientists in the US and Europe with data-intensive science research applications to create instantly the cyber infrastructure (network, computing and storage resources) needed to collaborate and share their resources. BRIDGES is also developing a dynamic, high-performance programmable Cyber-Infrastructure testbed that connects more than 40 research communities and their resources in the United States with collaborating partners and facilities in Europe. The initial arrangement is capable of carrying 200 Gbps of science data -- with the potential of up to Tera bits per second.

The purpose of the project is to create dynamic, deterministic, and manageable end-to-end network transport services for high-end e-Science applications. This service capability will build on the success and reach of the IP infrastructure, and will complement it with deterministic end-to-end multi-protocol services spanning multiple administrative domains and a variety of conventional campus network technologies. The project will create a Generalized MultiProtocol Label Switching (GMPLS) capable optical core network. Optical transport and switching equipment acting as Label Switching Routers (LSRs) will provide deterministic network resources at the packet, wavelength, and fiber cross connect levels. The all-optical capabilities proposed for this core network will be based on connection and resource management mechanisms defined in GMPLS and will model many of the functions of an inter-regional, national, or even global wavelength based Research and Education (R&E) networks. Attached to the core infrastructure will be experimental campus networks carved out from collaborating institutional campus infrastructure. Network requirements will be driven by tight integration with application team members.