A User-Division Cross-Layer Resource Allocation Scheme for OFDMA System

摘要：

A new user-division cross layer resource allocation scheme is proposed for the downlink of OFDMA system that considers the QoS requirements. The user-division model based on finite-length user queue is built up while the user rate constraints are formulated. Users are dynamic and divided into “super users and “common users by time delay. After all the users’QoS is guaranteed, subcarriers and power is preferentially allocated to the “super users while maximizing the system throughput. Simulation results show that the scheme can reduce the packet drop rate and maintain high system throughput when the packet arrival rate is high.

关键词： QoS Orthogonal frequency-division multiple access (OFDMA) Cross-layer Resource allocation

作者: Xiuhong Yuan Guan Hong

作者单位: Nanjing Institute of Railway Technology, College of the Railway Transportation No.65 Jian Ning Road, Nanjing Forest University, College of Mechanical and Electronic Engineering, No.159 Lone Pan Road. X

会议类型: 国际会议

会议名称: 2010 International Conference on Image Analysis and Signal Processing(2010 图像分析与信号处理国际会议 IASP 10)

会议地点: 厦门

会议语种:英文

页码: 307-311

在线出版日期: 2010-04-12（万方平台首次上网日期，不代表论文的发表时间）