BARWAN's Experimental Facilities

Berkeley Computer Science Division and Soda Hall Networking Infrastructure

The University of California at Berkeley is the nation's premier public university, with a world-renowned research reputation and an especially strong engineering program. According to the most recent U.S. News and World Report rankings, the Berkeley graduate computer engineering program is ranked number one in the country, the graduate computer science program is tied for first (with CMU, MIT, and Stanford), and the electrical engineering program is ranked second. In a recent National Research Council report, three of nine major computer systems technologies of the last 25 years were initially developed by Berkeley researchers: time sharing operating systems (Berkeley BSD Unix), Reduced Instruction Set Computers (RISC), and Redundant Arrays of Inexpensive Disks (RAID). Soda Hall provides an ideal environment for investigating in-building wireless overlay networks (see figure). The network is based on scalable ATM technology, with fiber/twisted pair distribution systems designed to be well-integrated with the building's physical layout. Any point in the building is near network connectivity, giving flexibility in the placement of wireless basestations. The 500+ workstations within the building are within a small number of network hops from any point on the network. High bandwidth and low latency connectivity give us an extraordinary opportunity to exploit this unique experimental resource to develop distributed processing approaches for mobile network management and application support.

Bay Area Gigabit Network (BAGNet)

BAGNet is supported by PacBell's CalREN program, which has awarded grants providing OC-3 ATM service to fifteen computer science research organizations in the S. F. Bay Area, including U.C. Berkeley (see Figure 13). It provides a high bandwidth, low latency wide-area backbone that can provide points to wireline resources from the wireless overlay networks at a number of sites around the Bay Area.

UCSF CalREN ATM and NLM ACTS Connectivity

The Laboratory for Radiological Informatics is developing UCSF's integrated picture archiving and communication systems (PACS) research and development program. This facility provides resources for medical image communication, integration of electronic patient records, image and data content extraction, and information distribution for research, and interactive computer-assisted medical education.

PacBell's CalREN program supports an OC-3 ATM WAN linking several hospitals in S.F (see here). In addition, UCSF and Mt. Zion Hospital are linked by an OC-3 ATM LAN (see here). These provide BARWAN with wireline connectivity for medical image transmission and distribution applications.

UCSF's Advanced Picture Archive and Communications System (PACS). More flexible access to this operational system will be provided through BARWAN's wireless overlay networks.

UCSF/NLM ACTS Satellite Testbed for medical library access and image transmission (see here). This network will be used to integrate the BARWAN into other national level testbeds.

Hughes Research Laboratories and Hughes Network Systems

The Information Sciences Laboratory (ISL) at HRL has access to a wide range of state-of-the-art workstation, servers, and database and object-oriented software. The corporate sponsor for the proposed project is Hughes Network Systems (HNS), a global leader in satellite, digital cellular and enterprise networking technologies, including VSAT satellite networks, digital cellular systems, CDPD, and ATM Switching. The corporate technology expertise and resources of HNS are available to the BARWAN testbed.

Other Testbeds in the San Francisco Bay Area

Monterey Bay Testbeds

Through collaboration with Professor J.-J. Garcia Luna of UC Santa Cruz, BARWAN is committed to establishing connectivity to the Santa Cruz experimental packet radio network, the Monterey Bay REINAS environmental sensor network, and the PacBell CalREN-sponsored ATM testbeds in the Monterey Bay area.

Other Bay Area Testbeds

Several major centers of wireless research activity are located in the San Francisco Bay Area, including SRI, Stanford, and Xerox. We are working to integrate these efforts with the BARWAN activity.

Randy H. Katz, ed.,; Last edited: 26 APR 95