Title :
Resource scheduling and congestion control for WMN
Author :
Li, Xu ; Yang, Xiaosong ; Cui, Lei ; Zhong, Zhangdui
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China
Abstract :
The guarantee technology of MAC quality of service (QoS) for wireless mesh network is proposed in this paper. While the MAC protocol of IEEE 802.16 mesh mode has provided a good framework for QoS guarantee, there is not a detailed standard for the resource scheduling algorithm in the MAC protocol. So further development is left to designers. According to the characteristics of WMN, this paper presents a resource scheduling algorithm. Also, the paper designs a new congestion detection module in MAC layer. With the help of the new congestion detection module, the congestion handling capacity of the network is improved and QoS guarantee mechanism is enhanced. To evaluate the performance of the algorithm, a simulation platform is set and implemented. The simulation results show that the new resource scheduling algorithm and congestion detection algorithm not only ensure the service priority of real-time operation but also improve the resource utilization and the network throughput.
Keywords :
WiMax; access protocols; quality of service; scheduling; telecommunication congestion control; telecommunication standards; wireless channels; IEEE 802.16 mesh mode; MAC protocol; congestion control; congestion detection module; congestion handling capacity; quality of service; real time operation; resource scheduling; wireless mesh network; Detection algorithms; Media Access Protocol; Quality of service; Resource management; Scheduling algorithm; Throughput; Wireless mesh networks; Congestion detection; QoS; Resource scheduling; WMN;
Conference_Titel :
Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4816-6
Electronic_ISBN :
978-1-4244-4817-3
DOI :
10.1109/ICCOMTA.2009.5349138
