The Spatial Reuse Slot Allocation with Reallocating Neighbor Links in the TDMA-Based Wireless Mesh Network

With the wide spread of broadband wireless communication devices such as wireless LAN and UWB, the wireless mesh network becomes common. As the mobile terminal's ability is getting advance in recent time, wireless mesh network is expected to support QoS for the multimedia application's traffic. The bandwidth reservation technologies that use TDMA-based MAC guarantee the QoS of these traffic. Each flow reserves the time slots for its route at the beginning of the communication. In the reservation, the network capacity improves greatly by considering the spatial reuse of slots. However, in the current researches, each flow considers the spatial reuse only within its route and consumes other flow's available slots. In this paper, we propose "Spatial Reuse Slot Allocation with Reallocating Neighbor Links" (SRSA-RNL). In SRSA-RNL, each flow gathers the neighbor link's slot information and reallocates the slots of these links by considering the spatial reuse among these links. We showed SRSA-RNL improved the data transmission in the network by 8% in the simulation.