@ARTICLE{9321155, author={Li, Shaoran and Huang, Yan and Li, Chengzhang and Jalaian, Brian A. and Hou, Y. Thomas and Lou, Wenjing and Russell, Stephen}, journal={IEEE/ACM Transactions on Networking}, title={Maximize Spectrum Efficiency in Underlay Coexistence With Channel Uncertainty}, year={2021}, volume={29}, number={2}, pages={764-778}, doi={10.1109/TNET.2020.3047760}}