@ARTICLE{7426815, author={Yuan, Xu and Shi, Yi and Qin, Xiaoqi and Hou, Y. Thomas and Lou, Wenjing and Kompella, Sastry and Midkiff, Scott F. and Reed, Jeffrey H.}, journal={IEEE Transactions on Mobile Computing}, title={Beyond Overlay: Reaping Mutual Benefits for Primary and Secondary Networks Through Node-Level Cooperation}, year={2017}, volume={16}, number={1}, pages={2-15}, doi={10.1109/TMC.2016.2539161}}