Title :
Dynamic Resource Allocation with Guaranteed Diverse QoS for WiMAX System
Author :
Sun, Zhuo ; Zhou, Yufen ; Peng, Mugen ; Wang, Wenbo
Author_Institution :
Wireless Signal Process. & Network Lab., Beijing Univ. of Posts & Telecommun.
Abstract :
A cross-layer resource allocation algorithm with guaranteed diverse QoS is proposed for WiMAX (worldwide interoperability for microwave access) system. In order to maximize the system throughput under satisfaction of the diverse QoS requirements, packet scheduling, subchannel allocation and adaptive modulation and coding schemes are jointly designed. The QoS requirements of real-time user are analytically derived through a statistical fashion, and individual scheduling strategy is employed for each type of service in consideration of its specific characteristics. The performance of the proposed algorithm is evaluated based on the WiMAX dynamical system-level simulation and compared with other existing algorithm
Keywords :
WiMax; adaptive codes; adaptive modulation; channel allocation; open systems; quality of service; resource allocation; statistical analysis; wireless channels; WiMAX system; adaptive modulation; coding schemes; cross-layer dynamic resource allocation; diverse QoS; packet scheduling; quality-of-service; statistical analysis; subchannel allocation; worldwide interoperability for microwave access system; Algorithm design and analysis; Bit rate; Heuristic algorithms; OFDM; Quality of service; Resource management; Scheduling algorithm; Signal processing algorithms; Throughput; WiMAX;
Conference_Titel :
Communications, Circuits and Systems Proceedings, 2006 International Conference on
Conference_Location :
Guilin
Print_ISBN :
0-7803-9584-0
Electronic_ISBN :
0-7803-9585-9
DOI :
10.1109/ICCCAS.2006.284891
