Secrecy Capacity of Multi-Terminal Networks With Pricing

We study the effect of pricing on the secrecy capacity of multi-terminal networks. We propose a linear and a non-linear pricing function for user terminals and present mathematical formulations to maximize the individual secrecy capacity of each transmitter-receiver pair as well as the sum secrecy capacity of the system. We show that these pricing models result in better energy efficiency and also results in more number of users with positive secrecy capacity. We also show that the model can result in an admission control scheme for admitting new users in the system that satisfies secrecy capacity constraints. Index Terms – Secrecy capacity, M-matrices, multi-user.