Modelling and performance analysis of the distributed scheduler in IEEE 802.16 mesh mode
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
A Channel Quality and QoS Aware Bandwidth Allocation Algorithm for IEEE 802.16 Base Stations
AINA '08 Proceedings of the 22nd International Conference on Advanced Information Networking and Applications
IEEE 802.16 Mesh Schedulers: Issues and Design Challenges
IEEE Network: The Magazine of Global Internetworking
Hi-index | 0.00 |
The IEEE 802.16 standard, also known as WiMAX, defines flexible frame structures to support applications classified into different WiMAX traffic classes. The standard defines two types of scheduling to guarantee the Quality of Service (QoS) requirements of these applications - centralized and distributed. However, the standard does not specify how the frame can be dynamically partitioned among its centralized and distributed schedulers or uplink and downlink schedulers. Through efficient partitioning that dynamically adapts the partitioning based on demand, network can support more user applications with different QoS requirements, and hence increase the revenues of service providers. In this paper, we propose a novel and general dynamic frame partitioning scheme for IEEE 802.16 mesh and IEEE 802.16j multi-hop relay networks. The scheme uses a dynamic Markov model that studies the frame utilization over current frames to predict efficient partitions for future frames. Simulation results show that the proposed scheme improves average frame utilization and decreases packet dropping.