On the capacity of the state-dependent cognitive interference channel

We derive the capacity region of two classes of the discrete memoryless state-dependent cognitive interference channels (SD-CICs) with noncausal channel state information known to only the cognitive transmitter: semideterministic SD-CIC and deterministic SD-CIC. We also provide new inner and outer bounds on the capacity region of the general SD-CIC. We prove that the new outer bound is the capacity region of the SD-CIC in the better cognitive decoding regime when both the cognitive transmitter and its corresponding receiver are aware of the channel state information in a noncausal manner.