An information theoretic framework for energy efficient secrecy

Physical layer energy-secrecy tradeoffs for wireless networks are investigated from an information theoretic perspective. An application layer characterization of physical layer secrecy is introduced to quantify the partial secrecy that can be achieved on a wireless transmission. Best effort and guaranteed partial secrecy channel models are introduced and analyzed. It is shown that a range of energy-secrecy Pareto optimal operating points can be achieved with an appropriate allocation of power resources between private and non-private data sub-streams.