Title :
Dynamic Data Scheduling and Resource Management Using Max-utility Estimation in Next Generation Wireless Networks
Author :
Kunqi Guo ; Lixin Sun ; Jia, Shilou ; Yang, Mingji
Author_Institution :
Commun. Res. Center, Harbin Inst. of Technol.
fDate :
Aug. 30 2006-Sept. 1 2006
Abstract :
A constrained resource allocation scheme is proposed in this paper to achieve optimized dynamic data scheduling in next generation wireless networks (NGWN). By modeling the problem as the solution to the maximization of the total utility function, we derive the optimization resource allocation model by instantaneously estimating the integrated information on channel condition and queue length of each user node as well as the set of subcarriers available. On the problem of maximizing the total utility function with respect to the average waiting time of each user queue over time window, we present an algorithm with low computation complexity for dynamic subcarrier allocation. Simulation results and mathematical analyses demonstrate that compared with the conventional approach, this scheme achieves higher efficiency due to making the most use of diversity of time, frequency and multiuser and can provide different required level of fairness by appropriately devising the utility function
Keywords :
OFDM modulation; computational complexity; multiuser channels; optimisation; packet radio networks; queueing theory; resource allocation; scheduling; computational complexity; constrained optimization resource allocation scheme; dynamic subcarrier allocation; max-utility function estimation; multiuser channel condition; next generation wireless network; optimized dynamic data scheduling; queue length; resource management; time window; Delay; Downlink; Dynamic scheduling; Next generation networking; OFDM; Power system modeling; Radio spectrum management; Resource management; Telecommunication traffic; Wireless networks;
Conference_Titel :
Innovative Computing, Information and Control, 2006. ICICIC '06. First International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7695-2616-0
DOI :
10.1109/ICICIC.2006.269