TY - GEN PB - IEEE N1 - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions. Y1 - 2018/09/27/ SN - 2162-7339 TI - Geometrically-shaped 64-point Constellations via Achievable Information Rates N2 - Achievable information rates (AIRs) are discussed as a performance metric to design optimized geometrically-shaped constellations. Mutual information and generalized mutual information are used to maximize the AIRs of 64-point constellations. AV - public A1 - Chen, B A1 - Okonkwo, C A1 - Lavery, D A1 - Alvarado, A UR - https://doi.org/10.1109/ICTON.2018.8473932 CY - Bucharest, Romania ID - discovery10061610 KW - Signal to noise ratio KW - Modulation KW - Gain KW - Measurement KW - Optical fiber communication KW - Optimization KW - Mutual information ER -