Resource allocation in a heterogeneous wireless network using fuzzy logic

A new scheduling and link adaptation scheme is designed for a heterogeneous wireless network where a) different links are using the shared media with various throughput requirement based on their applications, b) links have different characteristics, c) various bit error rate constraints are to be considered at the receivers, d) based on the available power supplies different average transmission power constraints are to be met. A fuzzy based scheme with a low complexity is presented which may be implemented in a wide range of networks where channel´s specifications are not available and network structure may be unknown. It is shown that the proposed fuzzy based scheme gives a close performance to analytical approach, however, with substantially lower CSI load and computational cost.