National Science Foundation WHERE DISCOVERIES BEGIN Simulation Tools for Underwater Acoustic Network Analysis Sumit Roy Dept. of Electrical Eng. Fundamentals of Networking Lab U. Washington, Seattle 1

National Science Foundation WHERE DISCOVERIES BEGIN Focus of Project / Need and Industrial Relevance (1 slide) Innovation through Partnerships2  Underwater Environment is challenging - too many variables/unknowns - temporal and spatial variations!  Performance of UW deployments+protocols untested (currently)!  need for good software analysis tools pre-deployment to mitigate risk!

National Science Foundation WHERE DISCOVERIES BEGIN Project Purpose and Goals (1 slide) UW is a leader in UW channel modeling and simulation tools Bell Hop: ray-tracing based accurate channel models ns-3: network simulation engine for analysis of protocol stack [funded by NSF over 8 year period] Innovation through Partnerships3

National Science Foundation WHERE DISCOVERIES BEGIN Existing ns-3 UAN Simulation Library  Supports AUV mobility models  Includes PER and interference models – Channel delivers prop. model data to PHY – PHY uses PER and interference modules to compute SINR and RX success  Current MAC models – ALOHA with Random Backoff MAC – Reservation Channel MAC protocol 4 Net Device MAC Channel Propagation Model PER PHY SINR

National Science Foundation WHERE DISCOVERIES BEGIN Pri mary Project Objectives (1 slide) Innovation through Partnerships5 NS3 UAN Future Work Integrate new link packet error rate (PER) models [collaborate with UConn] – OFDM Identify network topologies (industry defined) Develop AUV mobility models (industry defined) Implement new MAC protocols (industry recommendations) – APCAP [1] – Slotted FAMA [2]

National Science Foundation WHERE DISCOVERIES BEGIN Approach & Methods (1 or 2 slides MAX) Customize ns-3 solutions to partner needs - develop new modules within ns-3 - conduct full suite simulations - tech transfer and support Innovation through Partnerships6 Pkt, Mode, Rx Pwr, PDP MAC PHY Channel MAC PHY Prop. Model Src Mobility, Dest Mobility Rx Power, PDP Pkt, Mode, SINR

National Science Foundation WHERE DISCOVERIES BEGIN Outcomes/Deliverables (1 slide) Work with partners pre-deployment to provide initial predictive assessments Integrate partner data (channel measurements, node mobility characteristics) into customized solutions Provide recommendations for experiments, staging deployments Innovation through Partnerships7

National Science Foundation WHERE DISCOVERIES BEGIN Expected Impacts (1 slide)  Mitigate risk !  Essential component of continual planning and refinement! Innovation through Partnerships8