Welcome to Rutgers!

1. Welcome to Rutgers! 1st Rutgers-Helsinki Ph.D. Student Workshop on Spontaneous Networking Liviu Iftode Department of Computer Science Rutgers University

2. My talk… • Proto-History • Workshop Overview • Disco Lab

3. The time before the workshop • Jan 2004, ANWIRE Winter School on Middleware in Cyprus (organized by M. Dikaiakos): meeting Oriana • Summer 2004: Oriana intern in Disco Lab • October 2004: NSF supplemental award for international collaboration • August 2005: visit to University of Helsinki • November 2005: Kimmo at Rutgers

4. Spontaneous Networking • Services over ad-hoc networks • An application-oriented approach to ad-hoc networking • Location-awareness • Loosely defined boundaries • Unplanned networks, unexpected users • Examples • Ad-hoc networks of smart phones • Vehicular networks

5. Monday, May 8, 2006 • 9:30 am - 10:30 am Welcome • Dr. Liviu Iftode (Rutgers University) and Dr. Kimmo Raatikainen (University of Helsinki) • 10:30 am - 11:00 am Break • 11:00 am - 12:00 pm Keynote Address • Future Trends in Wireless Technology and the Path to Pervasive Computing - Dr. Dipankar Raychaudhuri (WINLAB Director, Rutgers University) • 12:00 pm - 1:30 pm Lunch • 1:30 pm - 3:00 pm Session I   • Binary Serialization of XML for Small Devices - Jaakko Kangasharju (University of Helsinki) • File Synchronization with Syxaw in an Ad Hoc Network (Work-in-progress Report) - Tancred Lindholm (University of Helsinki, Finland) • 3:00 pm - 3:30 pm Break • 3:30 pm - 5:00 pm Session II   • Mobility Control for Throughput Maximization in Ad Hoc Networks - Dr. Tamer Nadeem (Siemens)  • Suppressing Attacks at the Originators: Trusted Remote Policy Enforcement in Ad Hoc Networks - Gang Xu (Rutgers University)

6. Tuesday, May 9, 2006 • 9:30 am- 10:00 am Opening Remarks • Dr. Haym Hirsh (DCS Chair., Rutgers University) • 10:00 am - 10:30 am Break • 10:30 am - 12:00 pm Session I  • Fuego Event Service: Towards Modularity in Event Routing - Sasu Tarkoma (University of Helsinki, Finland)  • Distributed Optimization in Networks - Elisa Schaeffer (University of Helsinki, Finland) • 12:00 pm - 1:30 pm Lunch • 1:30 pm - 3:00 pm Session II   • Information Flow Control for Location-Based Services - Nishkam Ravi (Rutgers University, CS)  • Privacy of Anonymous Location Sampling Techniques: A Traffic Monitoring Case Study - Baik Hoh (Rutgers University, EE/WINLAB) • 3:00 pm - 3:30 pm Break / Demo Camera Phones (Disco Lab) • 3:30 pm - 5:00 pm Session III   • A Multipath Routing Architecture for Background Transfers - Aniruddha Bohra (Rutgers University, CS) • Byzantine Fault Tolerant Public Key Authentication in Peer-to-Peer Systems - Vivek Pathak (Rutgers University, CS)

7. Wednesday, May 10, 2006 • 9:30 am - 11:45 am Session I   • Outdoor Distributed Computing - Dr. Cristian Borcea (New Jersey Institute of Technology)   • Context-Aware Migratory Services in Ad Hoc Networks - Oriana Riva (University of Helsinki, Finland)   • Extending Component-Based Software Architecture with Context-Awareness and Beyond - Michael Przybilski (University of Helsinki, Finland) • 12:00 pm - 1:30 pm Lunch • 1:30 pm - 3:00 pm Session II   • ORBIT: Open-Access Research Testbed for Next-Generation Wireless Networks - Pandurang Kamat (Rutgers University, CS/WINLAB)  • Designing an Inter-Vehicular Network Stack for Car-to-Car Communication - Pravin Shankar (Rutgers University,CS) • 3:00 pm - 3:30 pm TrafficView Demo (CS/Disco Lab) • CoRE Building Parking Lot • 4:00 pm - 5:00 pm ORBIT Tour - WINLAB

8. Friday, May 12, 2006 • 9:30 am - 10:30 am Programming Ad Hoc Networks of Mobile Devices - Dr. Ulrich Kremer and Adrian Stere (Rutgers University, CS) • 10:30 am - 11:00 am Break • 11:00 am - 12:30 pm Session I - Potpourri Session • Application-Specific Compression for Remote Visualization of Genomics Applications - Lars Ailo Bongo (University of Tromso, Norway)   • Towards Automated Detection and Containment of Rootkit Attacks - Arati Baliga (Rutgers University, CS)   • FileWall: Implementing File Access Policies Using Access Context - Stephen Smaldone (Rutgers University, CS) • 12:30 pm - 2:00 pm Lunch • 2:00 pm - 3:00 pm Disco Lab – Helsinki Meeting (Core B)

9. Workshop Speakers • Rutgers, Computer Science • Disco Lab • Power and Energy Management Lab (EEL) • University of Helsinki, Computer Science • Rutgers., WINLAB/ Electrical and Computer Engineering • New Jersey Institute of Technology • Siemens Corporate Research, Inc. • University of Tromso, Norway

10. Distributed Computing Laboratory • Created in 1998 • One faculty, ten graduate students • Five active projects • Three active NSF grants ($2.1 Million) • Three industrial collaborations • Network Appliance, Inc • Siemens Corporate Research, Inc • VMware, Inc • International Collaboration • INRIA/IRISA Rennes, UPC Barcelona, University Paris 6, University of Helsinki, Technical University of Bucharest • Three joint workshops: Rennes (Dec 2005), Rutgers (May 2006), Paris (June 2006) • Six foreign graduate students visited Disco Lab in 2006! • Graduate/Light Seminars: Network-Centric Systems, Self-Healing, Vehicular Computing and Networking, Intrusion Detection

11. Network-Centric Systems • Promising border-crossing systems research area • Networking has moved from periphery to center • Dictates performance • Limits availability • Makes programmability difficult • Opens software vulnerabilities to attacks • Networking has become the main challenge/obstacle/opportunity for systems research • Wide range of network-centric systems, from network servers to pervasive systems

12. Disco Lab Project Areas • Server Networking Performance • Service Availability • Remote Healing • Defensive Architectures • Distributed Embedded Systems • Pervasive Computing using Smart Phones • Vehicular Computing Systems

13. Server Networking Performance • Execution of traditional TCP/IP protocol stack dominates the server overhead • Two approaches to reduce transport protocol impact on server performance: offload or make it lighter • Offloading TCP: TCP Servers • Lightweight transport (Remote DMA): Memory-Mapped User-Level NFS over RDMA • Collaboration with Network Appliance, Inc

14. Service Availability • For the client, server availability is not enough • How to provide end-to-end service availability? • Migratory TCP • Migrate server end-point of live connection • Service Continuations • Migrate service sessions between cooperative servers running the same service

15. Remote Healing • Traditionally, recovery from OS failures means reboot • How to access memory when OS is unavailable? • Backdoor • Trusted I/O device that can execute remote memory operations without involving local OS/CPU • I-NIC (e.g. Myrinet) supporting R-DMA operations • Remote Monitoring • Sensor Box • Remote Repairing • Repare remote OS state • Remote Recovery • Recover service sessions from a failed OS

16. Defensive Architectures • From OS failures to compromised OS • Once OS is compromised, the attack is hard to detect and even harder to contain • How to do intrusion detection+containment automatically? • Defensive Architectures use trusted entities to monitor system integrity and/or enforce access policies • A priviledged VM: Paladine • A TPM-based service code monitor: Satem • Interposed between client and file server: FileWall • Continuous Monitoring • Discrete detection remains vulnerable • Continuous invariant checking • Cooperative Monitoring • Cooperative detection • Cooperative Continuous Monitoring • Continuous checking of distributed invariants

17. Distributed Embedded Systems • We know how to program distributed systems with stable configuration and reliable networking • We do not know how to program large and dynamic networks of embedded systems • Execution migration and self-routing • Smart Messages • High-level distributed models for programming embedded systems in the physical space • Spatial Programming • Spatial Views (EEL in collaboration with Disco Lab)

18. Pervasive Computing using Smart Phones • Smart phone • the first device that enables pervasive computing and makes undergraduate students happy • Smiles project • Exploit dual connectivity for service provisioning • Indoor localization using camera phones (Demo!) • Privacy guarantees in location-based services • Next generation: Smart phone + iPod • Low-bandwidth continuous connectivity is a form of weak connectivity • Coda on smart phones?

19. Vehicular Computing Systems • Make mobile ad-hoc networks real and real-time! • Dedicated Short Range Communications (DSRC) for V2V communication • What are the killer applications? • Near view for active accident avoidance: TrafficView • Far-view for automobile congestion detection/avoidance and route planning • TrafficView: one of the first outdoor experiments with a real vehicular computing system (Demo!) • Security concerns: Trust and Privacy • Probabilistic validation of aggregated traffic data • Content-distribution over vehicular networks • Dual connectivity: cellular/short range

20. Some Lessons • Novel hardware inspires systems research • RDMA, TPM, Smart Phones, DSRC • Offloading as principle of systems design • Functionality, monitoring, policy enforcement, validation • Pervasive computing and vehicular computing are coming • Outdoors is not like indoors! • Outdoor systems are hard to build, test and evaluate • International collaboration is a professional and social exercise absolutely necessary for students