Dynamic control for cooperative jamming with a non-altruistic node

Cooperative jamming approach in secure communication typically assumes dedicated and/or altruistic jamming nodes, investing their resources for the good of the whole system. In this paper, we consider a system with a non-altruistic jamming node, from which a source node utilizes jamming service, compensating it with a fraction of its bandwidth for transmission of its data. In particular, we consider the problem of maximizing sum utility of source and jamming nodes constrained with an average jamming power. Our scheme achieves a utility, arbitrarily close to the maximum achievable utility.