Tactical Data Link Simulator with Cognitive Anti- Jamming Capability

In this paper, we present a Link-16-based tactical data link (TDL) simulator with cognitive antijamming capability (CAJC). CAJC improves antijamming capability of existing TDL by adding the cognitive radio (CR) spectrum sensing-based jammer detection. In the presented TDL, each terminal that senses (or detects) the jammer signal can avoid the jammer spectrum opportunistically. For jammer signal detection, each terminal employs generic CR spectrum sensing schemes like signal energy sensing (SE) and signal-to-jammer-plus-noise ratio sensing (SJNR) or hybrid CR spectrum sensing schemes like beacon plus signal strength sensing (BC_SE) and beacon plus signalto-jammer-plus-noise ratio sensing (BC_SJNR). In this paper, we design a Matlab/Simulink-based simulator for the verification of presented TDL. This simulator includes a cyclic code shift keying (CCSK) data symbol modulator, a minimum shift keying (MSK) chip symbol modulator, a Rician fading channel module, and a partial-band noise jamming (PBNJ) module. Using this simulator, we can evaluate the bit-error-rate (BER) performance of the proposed TDL and verify that the proposed TDL is more robust to conventional TDL over PBNJ environments.