Lesson Non-Uniform constellations for 64-QAM present the content: Simulations parameters, Simulation results with phase noise , 64-QAM NUC definition code rate 13/16, 64-QAM NUC definition code rate 3/4...
May 2015 doc.: IEEE 802.1115/0601r0 NonUniform Constellations for 64QAM Date: 2015/05/11 Authors: Name Affiliations Address Phone Daniel Schneider Sony Deutschland Thomas Handte GmbH Hedelfinger Str. 61, D70327 Stuttgart email daniel.schneider@ eu.sony.com thomas.handte@ eu.sony.com Submission Sli Daniel doc.: IEEE 802.1115/0601r0 May 2015 Higher order QAMs discussed in e.g. [1][4] as potential technology for 802.11ay – – Nonuniform constellations (NUCs) provide increased performance compared to uniform constellations (UCs) [3][4] – Especially for higher order QAMs [3] • – – Submission Gain up to 0.7dB for 256QAM (OFDM) APSK for 64QAM (SC) [4] Moderate (2D NUC) or no (1D NUC) increase in demapper complexity Sli 2-D NUC: 16-QAM 1-D NUC: 16-QAM 1D 16NUC for 3dB 0.5 l • OFDM: 128QAM, 256QAM (up to 64QAM in ad) SC: 64QAM (up to 16QAM in ad) Im{x } • Motivation -0.5 -1 -1 -0.5 0.5 Re{x } l Daniel doc.: IEEE 802.1115/0601r0 May 2015 Outline • NUCs for 64QAM and single carrier (SC) modulation • Performance results – Submission AWGN channel with and without phase noise Sli Daniel doc.: IEEE 802.1115/0601r0 May 2015 • NUCs for 64QAM 2dimenionsal (2D) NUCs – – – • Different NUCs for each code rate – • Improved performance compared to 1D NUCs Reasonably demapper complexity (especially for