Adaptive Sub-Channel Allocation Based on Hopfield Neural Network for Multiuser OFDM

摘要

A kind of adaptive sub-channel allocation method utilizing Hopfield neural network (HNN) is studied in this paper. In order to find the power optimal sub-channel allocation under the constraints that only one sub-channel can be allocated to one user and all users are allocated the same number of sub-channels, a kind of new energy constrained function is constructed for the HNN. It is shown through numerical simulation that the proposed method can find the optimal allocation with less complexity compared with the exhaustive method.