A Packet Scheduling Algorithm with Interruption Factor for Cognitive Radio

摘要：

As scarcity of spectrum resource has become a major bottleneck of the development of next generation radio system,Cognitive radio (CR) arises as a hot research topic in wireless communication. Packet scheduling, one important part of radio resource management, plays a vital role in cognitive radio realization. In this paper, we propose a modified proportional fairness scheduling algorithm with interruption factor (MPF-IF) that suits cognitive radio applications. This algorithm considers a priority queue model in the interruption time (The time of primary users arrival). The primary user has preemptive priority over secondary user, while secondary users are divided into different priority levels based on their different traffic types and interruption factors. Simulation results show that, compared with traditional packet scheduling algorithms, the proposed algorithm provides better QoS guarantee for secondary users traffics and mure fairness for secondary users.

关键词： cognitive radio packet scheduling QoS Interruption time

作者: Tao Li Wan Bin Tang Shao Qian Li

作者单位: National Ket Laboratory of Science and Technology on Communications University of Electronic Science and Technology of China

会议类型: 国际会议

会议名称: 2010 IEEE International Conference on Intelligent Computing and Intelligent Systems(2010 IEEE 智能计算与智能系统国际会议 ICIS 2010)

会议地点: 厦门

会议语种:英文

页码: 189-193

在线出版日期: 2010-10-29（万方平台首次上网日期，不代表论文的发表时间）