1. http://www.soe.ucsc.edu/research/ccrg/DAWN UCSC: MIT:
4/17/2017
UCSC:
MIT:
Stanford University:
UC Berkeley:
UCLA:
UIUC:
University of Maryland:
J.J. Garcia-Luna-Aceves (PI)
Hamid Sadjadpour
Katia Obraczka
Muriel Medard
Andrea Goldsmith
Pravin Varaiya
Rajive Bagrodia
Mario Gerla
Jennifer Hou
Nitin Vaidya
Tony Ephremides

2. Agenda 7:30 Registration and breakfast 8:00 Welcome and introductions
4/17/2017
Agenda
7:30 Registration and breakfast
8:00 Welcome and introductions
8:10 ARO Remarks (Bob Ulman, ARO)
8:40 DAWN overview (J.J. Garcia-Luna-Aceves, UCSC)
9:00 Cross-Layer issues and fundamental results on performance
(Anthony Ephremides, Maryland)
9:30 Cooperation and cross-layer design in wireless networks
(Andrea Goldsmith, Stanford)
10:00 Coffee break
10:15 Analysis of link and path dynamics in MANETs
(Hamid Sadjadpour, UCSC)
10:45 Modeling and control of information flow patterns
(Pravin Varaiya, UC Berkeley)
11:15 Using multiple channels and spatial backoff to improve
wireless network performance (Nitin Vaidya, UIUC)
11:45 Power, carrier sense threshold, and rate control (Jennifer Hou, UIUC)
12:15 Scaling issues for multi-paradigm network modeling (Rajive Bagrodia, UCLA)
12:45 Lunch break (start again at 1:45 pm)

3. Agenda (2) 1:45 Robust wireless multicast using network coding
4/17/2017
Agenda (2)
1:45 Robust wireless multicast using network coding
(Mario Gerla, UCLA)
2:15 Network coding for multicating and unicasting in MANETs
(Muriel Medard, MIT)
2:45 Coffee break
3:00 Energy efficiency in MANETs
(Katia Obraczka, UCSC)
3:30 Towards a new routing framework for MANETs
(J.J. Garcia-Luna-Aceves, UCSC)
4:00 Conclusions
4:15 Government caucus
Feedback to DAWN team

4. 4/17/2017
Motivation
Wireless networks in the battlefield are highly dynamic, and they are very different than the Internet and wireless LANs.
However,
Network control is based on algorithms designed for graphs with point-to-point links in which interference is confined to each link.
No good understanding of the effects of the physical layer on protocol stack.
No good handle on self-configuring and robust protocols.
Mobility and interference are poorly understood.
Wireless spectrum is utilized poorly, based on fixed allocation of resources.
Protocol layers have been designed in isolation.

5. A “Science of Networking”
4/17/2017
Technical Approach
What is the performance of specific protocols with a specific PHY?
What is the best that we can possibly do?
fundamental limits
Upper-bound
Lower-bound
Is the protocol correct?
logic
analytical models
protocols and architectures
PHYSICAL
LINK
NETWORK
TRANSPORT
APPLICATION
synchronization
neighborhood
discovery
transmission
scheduling
Antennas, radios
interconnection
collaborative applications…
end-to-end transport protocols…
routing-structure
maintenance
opportunistic
packet forwarding
simulations

6. Technical Approach IMPACT RESEARCH RESULTS Fundamental analytical
4/17/2017
Technical Approach
IMPACT
RESEARCH
RESULTS
realistic
simulations
analytical
models
reports, papers,
software in web page,
input to standards
Training and
placement
of students
Models, protocols, and
code used by other
groups
Models and
protocols from
other groups
Better MANETs for DoD and commercial applications
Analytical
modeling
Large-scale, high-fidelity
simulations
Modular protocol stack
Cross-layer optimized, energy
efficient, fault-tolerant,
self-configuring
Fundamental
limits

7. Project Structure DAWN JJ Garcia-Luna-Aceves (PI) Task 1: Task 2:
4/17/2017
Project Structure
DAWN
JJ Garcia-Luna-Aceves
(PI)
Task 1:
A. Ephremides
(Task Leader)
JJ Garcia-Luna-Aceves
A. Goldsmith
M. Medard
H. Sadjadpour
P. Varaiya
Task 2:
A. Goldsmith
(Task Leader)
R. Bagrodia
M. Gerla
M. Medard
K. Obraczka
H. Sadjadpour
N. Vaidya
P. Varaiya
Task 3:
JJ Garcia-Luna-Aceves
(Task Leader)
M. Gerla
J. Hou
K. Obraczka
N. Vaidya
Task 4:
K. Obraczka
(Task Leader)
JJ Garcia-Luna-Aceves
M. Gerla
A. Goldsmith
J. Hou
M. Medard
P. Varaiya
Task 5:
J. Hou
(Task Leader)
R. Bagrodia
K. Obraczka
Task 6:
P. Varaiya
(Task Leader)
A. Ephremides

8. Summary of Scientific Progress
4/17/2017
Summary of Scientific Progress
19 journal papers published or accepted for publication.
ACM WINET, ACM/IEEE Trans. Networking, IEEE Trans. Comm., IEEE Trans. Wireless Comm., ACM Trans. Sensor Networks, Computer Communications, Ad Hoc Networks
35 peer-reviewed papers in conference proceedings
ACM Mobicom, ACM Mobihoc, ACM SIGCOMM, IEEE Infocom, IEEE WiOpt, IEEE MASS, IEEE Qshine, IEEE ICC, IEEE IPSN
One Best Paper Award (IEEE MASS 2005)
8 Invited papers
12 manuscripts
13 Ph.D. theses completed, at least 2 graduates with faculty positions
Active and growing intercampus collaboration (e.g., UCLA-MIT, UCLA-UCSC, Stanford-MIT)

9. Summary of Scientific Progress (2)
4/17/2017
Summary of Scientific Progress (2)
More accurate treatments of the effects of the physical layer in the protocol stack
First analytical models that accurately reflect the impact of node mobility in links and paths
New approaches on how MAI should be treated
New modeling tools for the characterization of energy consumption in MANETs
New performance trade-offs involving node complexity, node mobility, packet length, channel utilization, and delay.
First results on network coding applied to unicasting and multicasting in MANETs
The first algorithm for on-demand routing that operates solely with source-originated sequence numbers
New approaches to information dissemination
New optimization techniques for large-scale simulations

10. Agenda 7:30 Registration and breakfast 8:00 Welcome and introductions
4/17/2017
Agenda
7:30 Registration and breakfast
8:00 Welcome and introductions
8:10 ARO Remarks (Bob Ulman, ARO)
8:40 DAWN overview (J.J. Garcia-Luna-Aceves, UCSC)
9:00 Cross-Layer issues and fundamental results on performance
(Anthony Ephremides, Maryland)
9:30 Cross-layer interaction, robustness, and cooperative communication
(Andrea Goldsmith, Stanford)
10:00 Coffee break
10:15 Analysis of link and path dynamics in MANETs
(Hamid Sadjadpour, UCSC)
10:45 Modeling and control of information flow patterns
(Pravin Varaiya, UC Berkeley)
11:15 Using multiple channels and spatial backoff to improve
wireless network performance (Nitin Vaidya, UIUC)
11:45 Power, carrier sense threshold, and rate control (Jennifer Hou, UIUC)
12:15 Scaling issues for multi-paradigm network modeling (Rajive Bagrodia, UCLA)
12:45 Lunch break (start again at 1:45 pm)

11. Agenda (2) 1:45 Robust wireless multicast using network coding
4/17/2017
Agenda (2)
1:45 Robust wireless multicast using network coding
(Mario Gerla, UCLA)
2:15 Network coding for multicating and unicasting in MANETs
(Muriel Medard, MIT)
2:45 Coffee break
3:00 Energy efficiency, robustness and mobility models in MANETs
(Katia Obraczka, UCSC)
3:30 Towards a new routing framework for MANETs
(J.J. Garcia-Luna-Aceves, UCSC)
4:00 Conclusions
4:15 Government caucus
Feedback to DAWN team