Title :
A Cross-Layer Subcarrier Allocation Scheme with QoS Guarantee and Fairness in IEEE 802.16e System
Author :
Yang, Feng-Ming ; Cheng, Tzu-Kai ; Wu, Jean-Lien C. ; Chen, Wei-Mei
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
Due to the limited bandwidth usage of wireless transmission, one of the major research topics is how to make a higher system throughput to support the multiple users based on limited bandwidth resources. This paper proposed a cross-layer subcarrier permutation mechanism (CLSP) and designed the service scheduling in the IEEE 802.16e system. The simulation results showed that when the throughput of system transmission become completely in use, the throughput of cross-layer proportional fair subcarrier permute mechanism is 28 percent more than the throughput of PUSC (Partial Usage of sub-channels) model formed by the IEEE 802.16e committee. In the user capacity, the number of users of cross-layer proportional fair subcarrier permute mechanism is 17 percent more than the number of users of PUSC. Moreover, cross-layer proportional fair subcarrier permute mechanism has a lower delay time as well as a long-term fairness among different users during the different service flows simulation.
Keywords :
IEEE standards; WiMax; quality of service; scheduling; CLSP; IEEE 802.16e system; PUSC; QoS guarantee; cross-layer proportional fair subcarrier permute mechanism; cross-layer subcarrier allocation scheme; delay time; service flow simulation; service scheduling; system throughput; system transmission; wireless transmission; Delay; OFDM; Physical layer; Quality of service; Real time systems; Resource management; Throughput; IEEE 802.16e; PUSC; service scheduling; subcarrier permutation;
Conference_Titel :
Systems and Networks Communications (ICSNC), 2010 Fifth International Conference on
Conference_Location :
Nice
Print_ISBN :
978-1-4244-7789-0
Electronic_ISBN :
978-0-7695-4145-7
DOI :
10.1109/ICSNC.2010.62
