Dennis N. McGregor Program Manager Communications & Networking ONR Navy Perspectives on Wireless Communications and Networking Cornell University 6 September 2002 Presented at NSF/ONR/ARO/ARL-CTA Workshop: Future Challenges of Signal Processing and Communications in Wireless Networks

ONR Thrust: Seamless, Robust Connectivity Multi-band / Multi-beam / Multi-function Wireless Signaling and Antennas –Efficient modulation, coding, and antenna designs for high capacity ‘communication links’ Adaptive Wireless Networking to support all users in a dynamic NCW radio relay grid –Provide ‘reconfigurable and robust networking’ within the grid between mobile, dispersed forces ashore and at sea Reliable and adaptive Quality of Service (QoS) and Bandwidth Management of user traffic –End-to-end performance to the ‘user’ (latency, bit error rate, precedence, etc.)

Seamless, Robust Connectivity Provide assured, user-transparent, rapidly adapted and reconfigurable communications connectivity between/among: –Globally dispersed sanctuary locations –Ships, aircraft and submarines –Positions in theater down to the lowest echelon Marine

High Capacity Communication Links  Efficient Modulation and Coding Designs (more bps/Hz) –Iterative decoding, Space-Time coding and MIMO channels –Interference mitigation –AWGN and LOS channels (jamming, interference, fading,…) –Low Probability of Interception/Detection links –Low data rate voice  Multi-band / Multi-beam / Multi-function Wireless Signaling and Antennas –Ship SATCOM links –Ship to aircraft links –Integrate communications, surveillance and electronic warfare functions into a combined architectural concept –Resource management –Broadband (frequency) capability

Adaptive Wireless Networking  Adaptive Wireless Networking to support all users in a dynamic NCW radio relay grid –Mobile ad-hoc networking approaches (IETF MANET WG) –Efficient channel access approaches –Energy efficient wireless networking concepts  Provide ‘reconfigurable and robust networking’ within the grid between mobile, dispersed forces ashore and at sea –UAV communications package (short/long ranges; high/low alt.) –UAV tactical phased array networking –Joint/Coalition networking  Joint Tactical Radio - Wideband Networked Waveform  Next Generation IP Internetworking –Migration from IPv4 to IPv6 over wireless networks

Quality of Service (QoS) and Bandwidth Management Reliable and adaptive QoS for all user traffic over heterogeneous networks –End-to-end performance to the ‘user’ (variable data rate, latency, bit error rate, precedence, etc.) Multi-layer QoS interactions and design Bandwidth and Resource Management –Shipboard wireless communication links/networks in multiple frequency bands –Management of shipboard communications, surveillance and EW resources –Bandwidth management across multiple networks (BGP4 protocol extensions, border gateways, bandwidth broker concepts)

Summary - Focus Areas for Research Bandwidth Efficiency and Management Multi-beam, Multi-functional Antennas Adaptive, Self-healing, and Energy-Efficient Networking –Sensor nets –Mobile communications nets (terrestrial and airborne UAV) QoS across Navy, Marine Corps, Joint Forces and Coalition Forces