Multimedia Networks Lab, Umass Amherst
 
Research

Current Research Focus

High-Speed Wireless Network Architecture for Multimedia Support
Our group works on the development of MAC and routing protocols for a variety of wireless networks. Such protocols account for quality of service constraints as well as the wireless channel characteristics and traffic requirements. To develop a broad understanding of the Quality of Service issues in wireless networks we validate our proposed architectures using simulation, analytical tools as well as experimental prototypes.

Current Projects:
      MAC protocol with QOS support for UWB based Wireless Networks
      Integration of 802.16 and 3G Networks
      Packet scheduling for QOS support in Metropolitan Area Networks
      Spacing-based Channel Occupancy REgulation (SCORE)
      Multi-channel coordinated Temporal Topology control (MOTTO)
      QoS On-demand Routing in Mobile Ad hoc Networks
      MAC Protocol for Inter-Vehicle Communication

      PERCEPT: Assisting the Visually Impaired

Ubiquitous Multimedia Delivery
Our lab designs and implements transcoding architectures that provide quality of service and security support to heterogeneous clients' devices over diverse wireless networks. We provide below a description of our proof-of-concept prototype as well as a number of ongoing projects on this topic.

Current Projects:
      Adpative MPEG-4 Video Streaming Architecture (Archies)
      Animated Space

Past Projects:
      Application Level Networking Solutions for MobiLe users (AnMOLe)
      Multi-Device Rendezvous Architecture (MuDRA)
      Ubiquitous Wireless Access to Digital Libraries (Collaboration with UC Berkeley)
      Mobile Agent Network Access Service (MANAS)
      MOKSHA

Security
We research and develop security tools that provide adaptive security services. These tools adapt to dynamic links (e.g., wireless links), CPU load, application load, while taking into account the applications' quality of service requirements.

Current Projects:
      Secure Routing Protocol design for Military Ad Hoc Networks
      Adaptive Link Layer Security for Wireless Networks (ALLSec)

Past Projects:
      Security in sensor networks (DARPA NEST)
      Security broker

Telemedicine
Multimedia Networks Laboratory is driving towards the next generation mobile Telemedicine applications. We envision significant communication needs and multimedia experience for futuristic health care applications and are developing state-of-the-art solutions for such demanding scenarios. Our contribution lies in building systems and network architectures, providing medical multimedia information, and optimizing the solutions for the medical domain.

Current Projects:
      Health Care on the Move
Battlefield Networks

Current Projects:
      Pervasive Networking Architecture for Multimedia Transmission in Battlefield Environments (PANORAMA)
Disaster Management

Current Projects:
      Wireless TeleCare for Mass casuality Situations (WITMAX) - In collaboration with SEPRI
Past Research
Optical Networks
Our research program includes different issues in optical networks that employ DWDM as their core technology:
      Design of novel virtual structures algorithms
      Complexity of managing optical networks
      Development of fast reconfiguration algorithms
      Interface between optical and other network technologies

Related Publications

The research work in the laboratory is supported by a combination of grants.

National Science Foundation Army Research Office Microsoft Corporation

 
  Send comments and suggestions at Email :  sraman [at] ecs [dot] umass [dot] edu
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University of Massachusetts, Amherst.
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