Research Article
Centralized Routing and Scheduling Using Multi-Channel System Single Transceiver in 802.16d
@INPROCEEDINGS{10.1007/978-3-642-11723-7_21, author={A. Al-Hemyari and N. Noordin and Chee Ng and A. Ismail and S. Khatun}, title={Centralized Routing and Scheduling Using Multi-Channel System Single Transceiver in 802.16d}, proceedings={Ad Hoc Networks. First International Conference, ADHOCNETS 2009, Niagara Falls, Ontario, Canada, September 22-25, 2009. Revised Selected Papers}, proceedings_a={ADHOCNETS}, year={2012}, month={7}, keywords={WMN Routing Scheduling Multi-Channel Single Transceiver}, doi={10.1007/978-3-642-11723-7_21} }- A. Al-Hemyari
N. Noordin
Chee Ng
A. Ismail
S. Khatun
Year: 2012
Centralized Routing and Scheduling Using Multi-Channel System Single Transceiver in 802.16d
ADHOCNETS
Springer
DOI: 10.1007/978-3-642-11723-7_21
Abstract
This paper proposes a cross-layer optimized strategy that reduces the effect of interferences from neighboring nodes within a mesh networks. This cross-layer design relies on the routing information in network layer and the scheduling table in medium access control (MAC) layer. A proposed routing algorithm in network layer is exploited to find the best route for all subscriber stations (SS). Also, a proposed centralized scheduling algorithm in MAC layer is exploited to assign a time slot for each possible node transmission. The cross-layer optimized strategy is using multi-channel single transceiver and single channel single transceiver systems for WiMAX mesh networks (WMNs). Each node in WMN has a transceiver that can be tuned to any available channel for eliminating the secondary interference. Among the considered parameters in the performance analysis are interference from the neighboring nodes, hop count to the base station (BS), number of children per node, slot reuse, load balancing, quality of services (QoS), and node identifier (ID). Results show that the proposed algorithms significantly improve the system performance in terms of length of scheduling, channel utilization ratio (CUR), system throughput, and average end to end transmission delay.
