Efficiency-aware and fairness-aware joint-layer optimization for downlink data scheduling in OFDM

被引:0
作者
GUO KunQi~1+ SUN LiXin~2 WANG Ping~1 JIA ShiLou~3 1 Shanghai Research Center for Wireless Communications
2 School of Measurement & Control Technology and Communication Engineering
3 Communication Research Center
机构
关键词
OFDM; efficiency and fairness; joint-layer; scheduling; utility function;
D O I
暂无
中图分类号
TN919.3 [数据传输技术];
学科分类号
0810 ; 081001 ;
摘要
Efficiency and fairness are two crucial issues to be considered for resource alloca- tion in multi-user wireless networks.Based on the joint optimization of physical layer and data link layer,an optimization model is derived to achieve efficient and fair downlink data scheduling in multi-user OFDM wireless networks by maximizing the total utility function with respect to the average waiting time of user queue.A dynamic sub-carrier allocation algorithm(DSAA)based on the optimization model is proposed in order to obtain the maximization of the total scheduling utility.Effi- ciency is improved by combining DSAA with time scale interference predictor(TSIP) which at large time scales predict ON/OFF period of user data with temporal corre- lation structure across multiple time scales in multi-user interference environment. Simulation results verify the efficiency and fairness of the scheme.
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页码:171 / 182
页数:12
相关论文
共 2 条
  • [1] Fair scheduling in wireless packet networks
    Lu, SW
    Bharghavan, V
    Srikant, R
    [J]. IEEE-ACM TRANSACTIONS ON NETWORKING, 1999, 7 (04) : 473 - 489
  • [2] Self-similarity in World Wide Web traffic[J] . Mark E. Crovella,Azer Bestavros.IEEE/ACM Transactions on Networking (TON) . 1997 (6)