Tools for the Analysis and Design of Complex Multi-Scale Networks: Overview"

Transcription

1 Tools for the Analysis and Design of Complex Multi-Scale Networks: Overview" MURI Annual Review Berkeley, October 27, 2011" J. Walrand, PI" SLIDES:

2 1. Team" Venkat Anantharam, UCB John Doyle, Caltech Weibo Gong, UMASS Steven Low, Caltech R. Srikant, UIUC Don Towsley, UMASS Jean Walrand, UCB Avideh Zakhor, UCB 14 PhD Students, 7 Postdocs 12 Journal Papers, 21 Conference papers

3 2. Scientific Objectives and Technical Approach"

4 2. Scientific Objectives and Technical Approach" High Throughput & Reliability GOALS of PROPOSED WORK: Improve Understanding of Multi-Scale Features of Networks Use that Understanding to Develop Better Protocols

5 2. Scientific Objectives and Technical Approach" High Throughput Methodology for LRD and Performance Evaluation Protocols Game: Attack/Defense Reliability

6 3. Scientific Issues" Local Information - Global Impact Multiple Time Scales Uncertainty & Reliability

7 4. Scientific Accomplishments" High Throughput Methodology for LRD and Performance Evaluation Protocols Game: Attack/Defense Reliability

8 4. Scientific Accomplishments" High Throughput Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Methodology for LRD and Performance Evaluation Protocols Game: Attack/Defense Reliability

9 4. Scientific Accomplishments" High Throughput Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Methodology for LRD and Performance Evaluation Access Delay in IEEE Stability of a P2P Protocol Target Tracking with Protocols In-Network Aggregation Connection-Level Scheduling Effect of Buffers on Stability Game: Attack/Defense Reliability

10 4. Scientific Accomplishments" High Throughput Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Access Delay in IEEE Stability of a P2P Protocol Target Tracking with In-Network Aggregation Connection-Level Scheduling Effect of Buffers on Stability Cost of Network Reliability

11 4. Scientific Accomplishments" High Throughput Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Goal: Understand Capacity w. Network Coding Access Delay in IEEE Stability of a P2P Protocol Connection-Level Scheduling Effect of Buffers on Stability Approach: o Unicast and multicast well-understood o What about multiple unicast? Presentation by Barlas Oguz Cost of Network Reliability

12 4. Scientific Accomplishments" High Throughput Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Access Delay in IEEE Stability of a P2P Protocol Connection-Level Scheduling Effect of Buffers on Stability Goal: Estimation of Distribution with HT Approach: o Study distribution of flow sizes o Sampling central notes in large graphs Cost of Network Reliability Presentation by Bruno Ribeiro

13 4. Scientific Accomplishments" High Throughput Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Access Delay in IEEE Stability of a P2P Protocol Connection-Level Scheduling Effect of Buffers on Stability Goal: Estimation with HT; Role of Layers Approach: o Goodness of fit with HT; o Hard limits; o Essentials of Cost layered of Network architecture. Reliability Presentation by John Doyle

14 Goals: Access delay distribution; CW adaptation 4. Scientific Accomplishments" Approach: High Throughput/ Low Energy o Distributed estimation of access delays o CW adaptation based Network on Sharing collision Bound parameters, not recent collision history. Power Laws in Network Analysis Fat tails, hard limits, thin layers Presentation by Avideh Zakhor Access Delay in IEEE Stability of a P2P Protocol Target Tracking with In-Network Aggregation Connection-Level Scheduling Effect of Buffers on Stability Cost of Network Reliability

15 Goal: Stable distributed P2P protocol 4. Scientific Accomplishments" Approach: High Throughput/ Low Energy o Avoid rare chunk problem by sampling. Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Presentation by Barlas Oguz Access Delay in IEEE Stability of a P2P Protocol Target Tracking with In-Network Aggregation Connection-Level Scheduling Effect of Buffers on Stability Cost of Network Reliability

16 Goal: Reduce variance of target location estimate 4. Scientific Accomplishments" Approach: High Throughput/ Low Energy o Aggregate information in network. Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Access Delay in IEEE Stability of a P2P Protocol Target Tracking with In-Network Aggregation Connection-Level Scheduling Effect of Buffers on Stability Presentation by Wei Wei Cost of Network Reliability

17 4. Scientific Accomplishments" Goal: Stability when connections come and go. High Throughput/ Low Energy Approach: o MWM with suitable f(q MAC ). Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Presentation by Javad Ghaderi Access Delay in IEEE Stability of a P2P Protocol Target Tracking with In-Network Aggregation Connection-Level Scheduling Effect of Buffers on Stability Cost of Network Reliability

18 4. Scientific Accomplishments" Goal: Understand stability of TCP with large buffers. High Throughput/ Low Energy Approach: o Understand conditions when TCP remains stable Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Access Delay in IEEE Stability of a P2P Protocol Target Tracking with In-Network Aggregation Connection-Level Scheduling Effect of Buffers on Stability Presentation by Somayeh Sojoudi Cost of Network Reliability

19 4. Scientific Accomplishments" High Throughput Goal: Impact of connectivity value on network design. Network Sharing Bound Power Laws in Network Analysis Fat tails, hard limits, thin layers Approach: o Define value of network and cost of connectivity loss. o Study NE of strategic attack vs. proactive defense. Access Delay and CW Adaptation in IEEE Stability of a P2P Protocol Connection-Level Scheduling Effect of Buffers on Stability Presentation by Assane Gueye Cost of Network Reliability

20 5. Group Synergy" Collaboration UIUC - UCB Delays in Adaptive CSMA Protocol Collaboration UIUC - UMASS Ying Srikant - Towlsey Collaboration UMASS - CALTECH File Partitioning Algorithms Collaboration UCB CALTECH Libin Jiang (UCB PhD) joined Caltech (as postdoc) Collaboration across projects UMASS Shroff: Mutlipath protocols and LRD Jiang Modiano: HT and Q-CSMA Gueye Baras: and Topologies Continued collaboration across projects Exploration of delay-based protocols Combination of LQF and Adaptive CSMA

21 6. Future Plans" 1) Analysis of delays and likelihood of delivery in wireless networks; 2) Design of network topologies for reliability and resiliency to attacks; 3) Improvements of WiFi protocols; 4) Study of LRD of functionals of Markov chains; 5) Development of secure wireless communication algorithms; 6) Design of resilient topologies

22 7. Original Goals" Improve Understanding of Multi-Scale Features of Networks Control protocols that capture the effect of buffers; Analysis of interaction of speed scaling and load balancing; Optimization of consensus algorithm; PCSDE models of heavy tails. Using that Understanding to Develop Improved Protocols Reduced-delay protocols for wireless networks; Stable distributed peer-to-peer algorithms; Stable multipath rate control algorithms; WiFi protocols with carrier sense and packet length adaptation; Geographical load balancing algorithms for renewables; Design of robust scheduling algorithms for heavy-tails; Algorithms for identifying important nodes in large networks; Algorithms for maintaining secure wireless communications.

23 Todayʼs Agenda" Barlas Oguz (Berkeley) Network Sharing Bound and Stability of a P2P Protocol Avideh Zakhor (Berkeley) Access Delay and CW Adaptation in IEEE Break Assane Gueye (NIST) Cost of Network Javed Ghaderi (UIUC) Connection-Level Scheduling Lunch Break Wei Wei (UMASS) Target Tracking with In-network Aggregation Bruno Ribeiro (UMASS) Power Laws in Network Analysis Somayeh Sojoudi (Caltech) Effect of buffers on stability of Internet congestion control Break John Doyle (Caltech) Fat tails, hard limits, thin layers Feedback and Remarks from Dr. Chang

24 Publications" JOURNALS Libin Jiang, Venkat Anantharam and Jean Walrand, ``How Bad are Selfish Investments in Network?", IEEE/ACM Transactions on Networking, Vol. 19, No. 2,pp , April 2011." Amin Aminzadeh Gohari and Venkat Anantharam, Evaluation of Marton's Inner Bound for the General Broadcast Channel. To appear in IEEE Transactions on Information Theory." Venkat Anantharam and Takis Konstantopoulos, Integral representation of Skorokhod reflection, To appear in Proceedings of the American Mathematical Society." Lijun Chen, Na Li, Steven H. Low and John C. Doyle. Two Market Models for Demand Response in Power Networks, IEEE SmartGridComm, 2010".J. J. Jaramillo, R. Srikant and L. Ying, Scheduling for Optimal Rate Allocation in Ad Hoc Networks with Hetergeneous Delay Constraints, IEEE Journal on Selected Areas in Communications, May 2011." J. J. Jaramillo and R. Srikant, Optimal scheduling for fair resource allocation in ad hoc networks with elastic and inelastic traffic, IEEE/ACM Transactions on Networking, 2011."

25 Publications" JOURNALS J. Ni, R. Srikant and X. Wu. Coloring Spatial Point Processes with Applications to Peer Discovery in Large Wireless Networks, IEEE/ACM Transactions on Networking, April 2011." M. Leconte, J. Ni and R. Srikant, Improved Bounds on the Throughput Efficiency of Greedy Maximal Scheduling in Wireless Networks, IEEE/ACM Transactions on Networking, June 2011." Y. Cai, Patrick P. C. Lee, W. Gong, D. Towsley. Analysis of Traffic Correlation Attacks on Router Queues, J. Computer Networks, 55(3), , February 2011." B. Jiang, Y. Cai, D. Towsley. On the Resource Utilization and Traffic Distribution of MultipathTransmission Control, to appear in Performance" L. Ying, R. Srikant D. Towsley, Cluster-Based Back-Pressure Routing Algorithm, IEEE/ACM Trans. on Networking, to appear. (Collaborative effort.)" B. Jiang, R. Brockett, W. Gong, D. Towsley. Stochastic differential equations for power law behaviors, submitted to J. Applied Probability."

26 Publications" CONFERENCES" Krishnan, E. Haghani, A. Zakhor, Local Estimation of Collision Probabilities in WLANs: An Experimental Study," IEEE WCNC 2011, Cancun." Krishnan, and A. Zakhor, Adaptive Carrier-Sensing for Throughput Improvement in IEEE Networks," IEEE GLOBECOM 2010, Miami, FL. " E. Haghani, M. Krishnan and A. Zakhor, "A Method for Estimating Access Delay Distribution in IEEE Networks," accepted for publication at IEEE GLOBECOM 2011, Houston, TX, December 2011." M. Krishnan, E. Haghani, A. Zakhor, "Packet Length Adaptation in WLANs with Hidden Nodes and Time- Varying Channels," accepted for publication at IEEE GLOBECOM 2011, Houston, Texas." Somayeh Sojoudi, Steven H. Low and John C. Doyle, "Effects of Buffers on Stability of Internet Congestion Controllers", IEEE International Conference on Computer Communications (INFOCOM), mini conference, China, " Zhenhua Liu, Minghong Lin, Adam Wierman, Steven H. Low and Lachlan L. H. Andrew, "Greening geographic load balancing", Proc. ACM Sigmetrics, 2011"

27 Publications" CONFERENCES" J. Nair, A. Wierman, B. Zwart. Scheduling for the tail: robustness versus optimality, Proceedings of Allerton, 2010 (Invited paper)" V. Borkar, J. Nair and N. Sanketh. Manufacturing consent, Proceedings of Allerton, 2010 (Invited paper)" Sudeep Kamath and Venkat Anantharam,``A new dual to the Gacs-Korner common information defined via the Gray-Wyner system", Proceedings of the 48th Annual Allerton Conference on Communications, Control and Computing, Urbana, Illinois, September 29 -October 1, 2010." Naryana Santhanam and Venkat Anantharam, ``What risks lead to ruin", Proceedings of the 48th Annual Allerton Conference on Communications, Control and Computing,Urbana, Illinois, September 29 -October 1, 2010." Assane Gueye, Jean C. Walrand and Venkat Anantharam. ``Design of Network Topology in an Adversarial Environment", GameSec2010, Conference on Decision and Game Theory for, November 2010, Berlin, Germany." Assane Gueye, Jean C. Walrand, and Venkat Anantharam, A Network Topology Design Game: How to Choose Communication Links in an Adversarial Environment?,GameNets2011, 2nd International ICST Conference on Game Theory for Networks, April 16-18, 2011, Shanghai, China."

28 Publications" CONFERENCES" Sudeep U. Kamath, David N. C. Tse, and Venkat Anantharam, Generalized Network Sharing Bound and the Two-Unicast Problem". NetCod 2011, The 2011 International Symposium on Network Coding, Beijing, China, July, " T. H. Kim. J. Ni, R. Srikant and N. Vaidya. On the Achievable Throughput of CSMA Under Imperfect Carrier Sensing. Proc. IEEE INFOCOM 2011." L. Jiang, M. Leconte, J. Ni, R. Srikant and J. Walrand. Fast Mixing of Parallel Glauber Dynamics and Low- Delay CSMA Scheduling, Proc. IEEE INFOCOM Mini-Conference (Collaborative Effort)" T. Ji and R. Srikant. Scheduling in Wireless Networks with Connection Arrivals and Departures. Proc. ITA S Xiao, W Gong, D Towsley. Secure Wireless Communication with Dynamic Secrets. INFOCOM (runnerup for best paper award) " S Xiao, W Gong. Mobility Can Help: Protect User Identity with Dynamic Credentials. 11th International Conference on Mobile Data Management (MDM 2010)"

29 Publications" CONFERENCES" J. Tan, W. Wei, B. Jiang, N. Shroff, D. Towsley. Can Multipath Routing Mitigate Power Law Delays? Effects of Parallelism on Tail Performance, ITC 2010, September (collaborative effort)" B. Ribeiro and D. Towsley. "Estimating and Sampling Graphs with Multidimensional Random Walks", ACM SIGCOMM Internet Measurement Conference, Nov, 2010." W Zeng, X Chen, A Russell, S Vasudevan, B Wang and W Wei, "Neighbor Discovery in Wireless Networks with Multipacket Reception", Proceedings of MobiHoc, Paris, France, May 2011." Y.-s. Lim, B. Ribeiro, D.S. Menasche, P. Basu, D. Towsley. Online Estimating The Top k Nodes of a Network, Proc. NSW 2011."