Multiple-Objective Power Control Algorithm Based on Successive Interference Cancellation Algorithm

摘要

Successive Interference Cancellation(SIC) is a multiuser detection algorithm, which can effectively combat multiple access interference in wireless networks. In wireless network system, the network throughput can be improved by using serial interference elimination algorithm and the transmitting power of control nodes. However, in practical applications, pursuing network throughput should also consider saving system energy consumption. In response to this situation, a multiple-objective power control model based on a successive interference cancellation is established with two optimization objectives, minimize the total system transmit power and maximize the average network throughput of the system nodes. An improved NSGA-II algorithm is used to optimize the model globally. A clustering distance-based elimination strategy is designed to maintain the population distribution. The effects of the improved NSGA-II algorithm on the problem are analyzed through simulation experiments. The results of 20 groups of contrastive experiments show that the Pareto solution obtained by the proposed algorithm is superior to the PESA-II algorithm and the MOPSO algorithm.