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RAP opportunity at Air Force Science and Technology Fellowship Program     AF STFP

Baseband Diversity Product Approaches for Protected Wideband Satellite Communications


Space Vehicles Directorate, RV/Space and Planetary Sciences

opportunity location
13.40.01.B8228 Kirtland Air Force Base, NM 871175776


name email phone
Khanh Dai Pham 505.846.4823


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.



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


key words
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;


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


Base Stipend Travel Allotment Supplementation
$95,000.00 $5,000.00

Experience Supplement:
Postdoctoral and Senior Associates will receive an appropriately higher stipend based on the number of years of experience past their PhD.

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