Achievable Rate Regions for Discrete Memoryless Interference Channel with State Information

In this paper, we study the state-dependent two-user interference channel, where the state information is non-causally known at both transmitters but unknown to either of the receivers. We propose two coding schemes for the discrete memoryless case: simultaneous encoding for the sub-messages in the first one and superposition encoding in the second one, both with rate splitting and Gel´fand-Pinsker coding. The corresponding achievable rate regions are established.