A Novel Delay- and Utility-Oriented Resource Allocation Algorithm for Mixed Services in OFDMA Systems

作者：Song, Zhengyu; Hou, Shujuan^*; Wu, Siliang

来源：Wireless Personal Communications, 2015, 83(2): 825-839.

DOI：10.1007/s11277-015-2428-9

• OFDMA
• Resource allocation
• Utility function
• Mixed services
• Real-time service

In this paper, a novel "delay- and utility-oriented (DUO)" resource allocation algorithm for the mixture of real-time (RT) and non-real-time services in orthogonal frequency division multiple access systems is proposed. The proposed DUO algorithm considers delay-utility function and rate-utility function simultaneously, scheduling RT packets approaching the deadline first and then achieving as much aggregate rate-utility as possible. Simulation results reveal that it can not only satisfy RT users' delay requirements in terms of packet drop ratio, but also obtain much more aggregate rate-utility for mixed services than other reference algorithms. Besides, the rate-utility fairness of all users is also improved substantially.

• 出版日期2015-7
• 单位北京理工大学