The problem of resource allocation in a high mobility network is always meaningful while challenging. Due to the mobility characteristic, the main difficulty lies in solving different optimization problems in a limited time, so traditional time-consuming optimization solvers are no longer applicable. This paper considers NGMA-enabled heterogeneous networks (HetNets) and uses end-to-end multi-agent reinforcement learning (MARL) to optimize the resource allocation problem. Even though MARL can use many cooperative agents to divide action space, it may lead to a significant increase in agent number, which is harmful to credit assignment. To tackle this problem, we employ a unique design that can fix the number of agents in any case. Agent credit assignment is then considered to guide agents to work cooperatively and ensure each efficient action gets a suitable reward. Also, a novel learning process named Learn to Improve is utilized to make our method more general. Numerical results and comparison experiments show the effectiveness and robustness of our methods.
Cooperative MARL for Resource Allocation in High Mobility NGMA-enabled HetNets
2022-09-01
1038830 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch