Title :
A multi-round resources allocation scheme for OFDMA-based WiMAX based on multiple service classes
Author :
Lishui Chen ; Qing Guo ; Junfang Wang ; Guizhong Liu
Author_Institution :
No. 54 Inst., China Electron. Technol. Group Corp., Shijiazhuang, China
Abstract :
IEEE 802.16 standard defines the broadband wireless access specification for WiMAX without any standardized schemes for resource allocation and scheduling, which has thus been attractive to researchers in the past few years. In this paper, a downlink resource allocation algorithm, named the Multi-Round Resource Allocation scheme, is proposed for OFDMA based PMP system in WiMAX networks based on multiple service classes. The algorithm allocates the wireless resource according to the channel states of each mobile station, the inherent priority of each service flow, the QoS requirements of the service flows, and the fairness among users as well as the fairness among the service flows. Simulation results show that the proposed algorithm has better performance in the average throughput, the average queuing delay, the loss rate and the fairness.
Keywords :
OFDM modulation; WiMax; quality of service; queueing theory; resource allocation; scheduling; telecommunication standards; IEEE 802.16 standard; OFDMA based PMP system; QoS requirements; WiMAX networks; average queuing delay; broadband wireless access specification; downlink resource allocation algorithm; multiple service classes; multiround resources allocation scheme; resource scheduling; standardized schemes; Delays; IEEE 802.16 Standards; Quality of service; Resource management; Scheduling algorithms; Throughput; WiMAX; Multi-Round; OFDMA; Resource Allocation Algorithm; WiMAX; modulation and coding scheme;
Conference_Titel :
Information Science, Electronics and Electrical Engineering (ISEEE), 2014 International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4799-3196-5
DOI :
10.1109/InfoSEEE.2014.6948110