A CROSS-LAYER SCHEDULING ALGORITHM WITH QoS-AWARE FOR COGNITIVE RADIO SYSTEMS

被引：0
|
作者：
Zhu, Lei [1 ]
Chen, Jianbin [1 ]
Zhao, Ying [1 ,2 ]
机构：
[1] PLA Univ Sci & Technol, Inst Commun Engn, Nanjing, Jiangsu, Peoples R China
[2] China Elect Syst Engn CORP, Beijing, Peoples R China
来源：
PROCEEDINGS OF THE 2010 INTERNATIONAL CONFERENCE ON ADVANCED INTELLIGENCE AND AWARENESS INTERNET, AIAI2010 | 2010年
基金：
国家高技术研究发展计划(863计划);
关键词：
cognitive radio; quality of service; scheduling algorithm; channel assignment cross-layer;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Anovel cross-layer scheduling algorithm with guaranteed QoS is proposed in CRN. A distinct scheduling priority integrating UCSI, QSI and QoS requirements is first ploposed for CUs. Base on these scheduling priorities and specific scheduling mechanism, packet scheduling and channel allocation are jointly designed. The simulation results reveal that the proposed algorithm suffers a limited decline in system throughput while reduces the packet delay and packet dropping probability effectively for cognitive users. By the optimized channel assignment with the Channel Allocation Weight, a better performance for spectral utility, packet delay and packet dropping probability is obtained under the dynamic UCSI in CRN.
引用
收藏
页码：259 / 264
页数：6
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