Proposal of User Cooperative Mobility Control for Higher Throughput in Social Ad Hoc Networks With Dynamic Optimal Routing

In this paper, we propose a user mobility control method to improve link throughput to APs in a social ad hoc network with a fixed number of possible connections, where dynamic routing control is used to optimize QoS based on the user's location. In the proposed method, we focus on the fact that the routing control changes the connection partner by user movement, and move the user to a location that improves the link throughput of other nodes. By analyzing the number of nodes that can be connected to the movable node to be controlled and the placement of these nodes, we identify the location where the throughput is improved and move the user. In order to evaluate the performance of the proposed method, we evaluated the throughput characteristics obtained by calculating the harmonic mean of transmission rates in the basic network model S, which clearly shows the characteristics of the proposed method. As a result, the throughput improvement was about 11% higher at a smaller travel distance compared to the conventional method, in which the movable node is moved as close as possible to the connected nodes. In the distributed topology T, where both the partner and the throughput characteristics vary depending on the location where the movable node moves, the throughput improvement was about 23% higher at a smaller travel distance compared to the conventional method.