Outage capacity and partial secrecy for energy efficient physical layer security in Gaussian fading channels

The partial secrecy outage capacity for fading channels in wireless networks is 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. Energy-secrecy tradeoffs are investigated based on outage capacity analysis and using our proposed partial secrecy metric. The outage probability is calculated under a long-term power constraint.