Adaptive Resource Allocation based on Resource Factor for Power-line Communication Systems

The multi-layer multi-objective optimization model of adaptive resource allocation for multi-user multi-server power-line communication OFDM systems is analyzed with the restrictions of maximal total power, fixed bits for every real time (RT) user and minimal bits for every non-real time (NRT) user, maximal power and bits for every sub-carrier in each time slot. Based on the resource factor and user priority, a resource allocation algorithm with the combination of rate and power adaptation is proposed. The algorithm is tested in typical power-line channel environment and the simulation results indicate that it has better performances than some known multi-user resource allocation algorithms and it realizes better the multiple aims of multi-user multi-server resource allocation for power-line communication systems.