计算机应用研究2012，Vol.29Issue(3)：1038-1043,6.DOI:10.3969/j.issn.1001-3695.2012.03.065
加权比例公平群智能跨层资源分配算法
Weighted swarm intelligence cross-layer resource allocation algorithm with proportional fairness
侯华 1李亘煊1
作者信息
- 1. 河北工程大学信息科学与电气工程学院,河北邯郸056038
- 折叠
摘要
Abstract
This paper proposed two weighted cross-layer resource allocation schemes with proportional fairness for multi-user OFDM system on the basis of researching the swarm intelligence algorithm, which were suitable for heterogeneous traffic. It not only assumed that every user in the system had multiple queues, that every queue carried respectively traffic of different types. In the MAC layer, the proposed two schemes both carried out the weighted proportional fairness scheduling. The scheduling provided different packets in users' queues different weight, sorted every user' s packets calculating users' weight by means of the weight, and set up the proportional constraints among users' rates according to the ratio of users' data to be passed. In the PHY layer, the two schemes not only both defined maximizing the system weighted capacity sum as optimization target under the proportional constraints among users' rates, but also both led swarm intelligence algorithm into their resource allocation under the optimization target. However, scenario 1 led artificial fish swarm algorithm into its sub-carrier allocation and used a new power allocation pattern to carry out power allocation, scenario 2 led the cloud adaptive particle swarm optimization algorithm into its sub-carrier allocation and used population migration algorithm to carry out power allocation. At last, the two schemes transmitted packets according to packet sequencing results that provided by the weighted proportional fairness scheduling. Data simulation and performance analysis demonstrate that the two schemes can increase the total system rates effectively on the basis of meeting the delay of users' traffic and guaranteeing users' fairness.关键词
OFDM系统/群智能算法/混合业务/比例公平/跨层资源分配Key words
OFDM system/ swarm intelligence algorithm/ heterogeneous classes of traffic/ proportional fairness/ cross-layer resource allocation分类
信息技术与安全科学引用本文复制引用
侯华,李亘煊..加权比例公平群智能跨层资源分配算法[J].计算机应用研究,2012,29(3):1038-1043,6.
