Title :
Two-Tier Scheduling Algorithm for Uplink Transmissions in IEEE 802.16 Broadband Wireless Access Systems
Author :
Chan, Lin-Fong ; Chao, Hsi-Lu ; Chou, Zi-Tsan
Author_Institution :
Dept. of Comput. Sci., Nat. Chiao Tung Univ., Hsinchu
Abstract :
IEEE 802.16 broadband wireless access (BWA) systems support classes of traffic with differentiated quality of service (QoS). However, the detailed of how to schedule traffic are left unspecified. In this paper, based on this hierarchical QoS architecture, we propose a novel two-tier scheduling strategy, called two-tier scheduling algorithm (2TSA). The first tier is category-based and the second tier is weight-based. Both tiers are implemented at BSs. We evaluate the performance of 2TSA via simulation. The simulation results show that our proposed algorithm can achieve both QoS guarantee and fair bandwidth allocation
Keywords :
WiMax; bandwidth allocation; broadband networks; quality of service; radio access networks; radio links; scheduling; IEEE 802.16 broadband wireless access systems; fair bandwidth allocation; hierarchical QoS architecture; quality of service; two-tier scheduling algorithm; uplink transmissions; Bandwidth; Channel allocation; Delay; Jitter; Job shop scheduling; Protocols; Quality of service; Scheduling algorithm; Telecommunication traffic; Traffic control;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.334
