An Achievable Rate Region for the Gaussian Z-interference Channel with Conferencing c 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. HIEU T. DO, TOBIAS J. OECHTERING, AND MIKAEL SKOGLUND Stockholm 2009 Communication Theory Department School of Electrical Engineering KTH Royal Institute of Technology IR-EE-KT 2009:073