Secure communications for multiple concurrent jammers and interceptors

In this paper, for independent or concurrent anti-jamming and low probability of detection performance evaluations, a single varying paired and multiple paired fixed collocated jammer/interceptors scenario is explored with real sine type (sin(x)/x) antenna patterns being considered for the communicators. Whenever multiple collocated jammer/interceptors are considered, we can observe interesting "smoothed" effects for bit energy to jamming density ratio (E_b/J_o), when one of these varying jammer/interceptors is approaching or receding. The proposed approach and metrics available have also paved one practical way for the developments of the latest emphasized cognitive radio (CR) communications systems, if all the collocated jammer/interceptors on the proposed scenario are replaced with "cooperative" communicators.