Slot allocation schemes for delay sensitive traffic support in asynchronous wireless mesh networks

Heterogeneous multihop wireless networks such as wireless mesh networks consist of a set of resource-constrained mobile nodes that want to communicate with each other and a set of fixed relay nodes that are equipped with better resources and help in relaying data to the mobile nodes. Supporting real-time traffic in wireless mesh networks is considered as a challenging problem. In a synchronous or asynchronous slotted environment, the position of reservation slots at every link of an end-to-end path influences the end-to-end delay. The major contributions of this paper are the following: (i) an on-demand QoS routing protocol for asynchronous single channel wireless mesh networks, (ii) three heuristics for the slot allocation and positioning process in such networks, and (iii) the adaptations of slot allocation and positioning strategies for taking advantage of the recovery capacity effect of batteries of the mobile nodes. The heuristics we propose are the Early Fit Reservation (EFR), M...

• Type: Journal
• Year: 2006
• Where: CN
• Authors: V. Vidhyashankar, B. S. Manoj, C. Siva Ram Murthy
• Keywords: CN 2006, Mobile Nodes, Slot Allocation, Wireless Mesh Networks