Bin Tan 0001 Hao Cui 0001 Jun Wu 0006 Chang Wen Chen An Optimal Resource Allocation for Superposition Coding-Based Hybrid Digital-Analog System. 945-956 2017 4 IEEE Internet Things J. 4 https://doi.org/10.1109/JIOT.2017.2680407 db/journals/iotj/iotj4.html#TanCWC17