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Opportunity at Air Force Research Laboratory (AFRL)

Baseband Diversity Product Approaches for Protected Wideband Satellite Communications

Location

Space Vehicles Directorate, RV/Space and Planetary Sciences

RO# Location
13.40.01.B8228 Kirtland Air Force Base, NM 871175776

Advisers

Name E-mail Phone
Pham, Khanh Dai khanh.pham.1@us.af.mil 505.846.4823

Description

Opportunities exist to explore Baseband Diversity Products (BDP) with flexibility options to operate in contested environments to maintain connectivity, improve link availability, reliability, and resilience, while at the same time confounding adversarial attempts to intercept and/or detect communications signals in wideband satellite communications. The implication of the diversity via satellite transponders, non-contiguous bandwidths, coverage beams, signal polarizations, and multiple media, is that baseband traffics such as video, voice, and data could be disintegrated and integrated according to dedicated and/or opportunistic network path flows for optimal end-to-end latency, transmission reliability, information security, and bandwidth utilization. This topic seeks to develop new approaches for innovative data stream splitter supervised by link information feedback (e.g., data rates, latency, modulation, channel coding) and quality of services per applications; adaptive load balancing for multipath routing and flow control with best efficiency and reliability; and agile code/frequency/time-hopping transmission patterns for satellite communications with low probability of detection and interception, as well as multiple link flow security.

If successful, the BDP technologies anticipated for future terminal communications, which will be inserted in between routers and satellite modems, should be capable of (1) supporting multiple network topologies for high speed data, voice, and video communications over terrestrial and satellite networks and (2) processing multiple streams simultaneously and interfacing with multiple commercial and military modems to support anti-jamming enhancement and ease of integration.

 

References

Zhang X, et al: Game-Theoretic Power Allocation and Waveform Selection for Satellite Communications. SPIE Defense and Security, 2015

Yu W, et al: On Effectiveness of Routing Algorithms for Satellite Communication Networks. SPIE Defense, Security, and Sensing Symposium, 2013

Yu W, et al: On Effectiveness of Hopping-Based Spread Spectrum Techniques for Network Forensic Traceback. International Journal of Networked and Distributed Computing–Atlantis Press, 1(3): 2013

 

Keywords:
Baseband diversity product; SATCOM; Terminal communications; Data fragmentation; Anti-Jamming; Flow control; Link information feedback; Stream splitter; Load balancing; Data rate; Latency; Jitter; Stream status; Delay; Multipath routing; Quality of services; Protection; Connectivity; Availability; Link security;

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral and Senior applicants
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