UCSD’s Responsphere Infrastructure

San Diego Gaslamp Quarter Proposed Infrastructure Motorola Canopy UNI-I 5.7 Backhaul Motorola Canopy UNI-I 5.7 Backhaul Tropos 5110 WiFi Cell Zone 1 NBC Building 225 Broadway Central Post 1 5th and Market CISCO 2900 Switch Zone 2 5th and F Central Post 2 5th and E CISCO 3600 Router 4th and E Using Unlicensed Bands Hybrid Approach 5.7 UNI-I band for backhauls 2.4 ISM band for local cells Design and Performance Analysis Using standard design tools (e.g. EDX) Proof of concept Inter-operateability test So far: System Analysis Site surveys Deployment analysis (Site accusation, etc) Technology analysis Inter-operatability test (currently under way) Test equipment hardware and configuration in the lab Next steps: Deployment in GLQ Test equipment hardware and configuration Post-Deployment optimization Test drives and system tuning Cal(IT)2 researchers will use the test bed for: Network Architecture Enhancement: New Mesh technologies New load balancing techniques Interoperatability with commercial products New Applications New security features New data sharing mechanisms for law enforcement Zone 3 Central Post 3 4th and G 5th and G OMC

High capacity multi-radio wireless mesh networks in Responsphere Spanning Tree 2 rooted at Gateway 2 Spanning Tree 1 rooted at Gateway 1 GPRS INTERNET INTERNET Gateway 2 1xEVDO Gateway 1 Wireless mesh APs Dual-Interface-dual-tree wireless mesh networks Uses two 802.11b interfaces per relay node Employes two spanning trees rooted at Gateways Offers high network throughput and reliability Work is progressing on multiple-spanning tree based network access schemes

Session Layer Bandwidth Aggregation Mechanism Client and Server-side Bandwidth Aggregation Modules Application Layer Application Layer Transport Layer Transport Layer Network Layer Network Layer Base stations Internet Path MAC 1 MAC 2 MAC N PHY 1 PHY 2 PHY N

Tracking Data Relay Unit (ManPack) Multi-hop wireless access network with multiple gateways Address Management: Unique IP address assignment Multi-hop Path Setup Gateway Discovery Gateway Selection Redundant, Self-healing network architecture Auto-Discovery and auto-configuration on power-up High bandwidth within the network Robust, Reliable Internet Connection

Mobile Hybrid Wireless Platform (Cybershuttle)

Command and Control Platform – Putting all the Pieces together The CyberShuttle (RESCUE) and CyberAmbulance (WIISARD) were developed as prototypes for different kinds of mobile command/control and response vehicles. Alone or together, neither was sufficient to meet the needs of a disaster scenario requiring medical or non-medical response. As a result, a series of artifacts began to emerge with varying capabilities. Out of the original CyberShuttle came the need to expand its WiFi “bubble” beyond the bus itself. A local company, Entrée Wireless, productized technology which was developed by Calit2 researchers, allowing a 1XEVD0 data signal to be processed and shared over 802.11b. This solution was further improved upon by Calit2 researchers in the context of Mesh Networking research for RESCUE and applications for WIISARD – getting these “breadcrumbs” to dynamically reconfigure the network and intelligently store and re-send data in case of loss of connectivity. Other platforms emerged as solutions to different kinds of problems: the Wireless Pulse-oximeter transmits patient pulseox information in real-time over a wireless network and can be deployed in disaster-site triage scenarios, and Cal-Radio is an emerging platform for fully configurable network research, programmable down to the MAC layer thus allowing greater flexibility in applications development and implementation. Yet new needs emerge with each iteration: we plan to develop a Cal-Radio/Mesh hybrid with GPS and other location-based technology, on which the Always Best Located platform and various other sensors can be deployed, allowing for more complete situational awareness in packages which can be quickly and easily deployed at the site of a disaster.