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The policy and charging control function is defined as PCC (policy and charging control) by 3GPP and SBBC (service based bearer control) by 3GPP2. It is valuable to establish an experimental testbed for PCC and SBBC to improve and verify the related performance. At present, we can make use of open source IMS (OSIMS) and UCT PCF to simulate 3GPP PCC, but there is no testbed for the policy control function...
Routers configure their paths based on the Link State Database (LSDB) in order to meet service requirements and Quality of Service (QoS) guarantee. Internet routing can be categorized into intra domain routing and inter domain routing, and QoS should be guaranteed both at the intra and inter domains for end-to-end QoS guarantee. The LSDB can be easily managed and updated at the inter domain routing...
IEEE P1900.4 is an emerging standard for optimized radio resource utilization where cognitive radio technologies are used for efficient spectrum utilization. In this paper, we design and implement a cognitive wireless network system based on open documents of IEEE P1900.4, and evaluate its performance using UDP streaming and HTTP download. Our experiments show interesting results that total network...
As Grid networks grows, the complexity of resource management in Grid networks dramatically increases. To manage the Grid resources efficiently, policy based resource management system is suitable. However, the policy which made at a moment could not be appropriate to other time because the condition of the grid resources with time space changes. Thus, in this paper, we propose asynchronous policy-based...
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