On the Complexity of Joint Subcarrier and Power Allocation for Multi-User OFDMA Systems - Liu, Ya-Feng; Dai, Yu-Hong (IEEE transactions on signal processing, 2014)
Keywords: Algorithms; Allocations; Applied sciences; Channels; Complexity; Computational complexity; Detection, estimation, filtering, equalization, prediction; Dynamical systems; Dynamics; Exact sciences and technology; Formulations; Information, signal and communications theory; Joints; Multiplexing; OFDM; OFDMA system; Optimization; Polynomials; power control; Resource management; Signal and communications theory; Signal, noise; subcarrier allocation; Subcarriers; system utility maximization; Telecommunications and information theory; Performance evaluation; Multiple access; Utility function; Frequency division multiple access; Frequency allocation; Polynomial method; Subcarrier; OFDMA system; Power allocation; Computational complexity; Polynomial time; Power control; Heuristic method; NP hard problem; Orthogonal frequency division multiplexing; Signal processing; Multiple frequency; Service quality; subcarrier allocation; system utility maximization