Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Lixia Xiao and Da Chen and Ibrahim A. Hemadeh and Pei Xiao and Tao Jiang,Graph Theory Assisted Bit-to-Index-Combination Gray Coding for Generalized Index Modulation,IEEE Transactions on Wireless Communications,1536-1276,Institute of Electrical and Electronics Engineers (IEEE),2020-12,19,12,8232-8245,https://cir.nii.ac.jp/crid/1360580628187801216,https://doi.org/10.1109/twc.2020.3020692