Resource management with borrowing from reservation for cognitive networks  

作　　者：李丹丹 Zhang Runtong Shang Xiaopu Chen Ying 

机构地区：[1]Institute of Information Systems,Beijing Jiaotong University [2]School of Management,Beijing Union University

出　　处：《High Technology Letters》2013年第3期301-308,共8页高技术通讯（英文版）

基　　金：Supported by the High Technology Research and Development Program of China(No.2009AA01Z211);the Fundamental Research Funds for Central Universities of China(No.2009YJS034);Beijing Nature Science Foundation of China(No.4112044);the Research Fund for the Doctoral Program of Higer Education of China(No.20120009110009)

摘　　要：Resource reservation is an effective measure to ensure end-to-end quality of service （QoS）, however, the burstyness of the traffic makes the reservation idle some time, and forms a waste of re- sources. Based on the analysis of active queue management （AQM） of DiffServ network, we propose a resource management scheme, which allows borrowing resources from unused reservation, accord- ing to the characteristics and advantages of cognitive networks. First, some nodes reserve certain proportion capacity for some special services （for instance, some services pay additional money） to guarantee the priority of these applications. Then resources are assigned according to the different parameters of services. If the available resource can not meet the requirements of new services, real- time ones are admitted with higher priority and allow borrowing the unused reservation from other nodes appropriately. Simulations show that, the proposed scheme has good performance at network resource utilization, the admission rate of new aDolications and OoS of users.Resource reservation is an effective measure to ensure end-to-end quality of service(QoS),however,the burstyness of the traffic makes the reservation idle some time,and forms a waste of resources.Based on the analysis of active queue management(AQM)of DiffServ network,we propose a resource management scheme,which allows borrowing resources from unused reservation,according to the characteristics and advantages of cognitive networks.First,some nodes reserve certain proportion capacity for some special services(for instance,some services pay additional money)to guarantee the priority of these applications.Then resources are assigned according to the different parameters of services.If the available resource can not meet the requirements of new services,realtime ones are admitted with higher priority and allow borrowing the unused reservation from other nodes appropriately.Simulations show that,the proposed scheme has good performance at network resource utilization,the admission rate of new applications and QoS of users.

关 键 词：cognitive networks resource reservation adaptive borrowing quality of service（ Qos ） 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]