Sun Qibo

Research on PSO based multiple UAVs real-time task assignment

Unmanned aerial vehicles (UAVs) have the capability of executing various missions. However, the capability of single UAV is limited. It may require multiple UAVs to form coalition and prosecute tasks cooperatively. So, multiple UAVs task assignment faces the problems of: (a) satisfy the heterogeneous resource requirement and (b) satisfy the task prosecution for real-time requirement. In this paper, a PSO based algorithm DCAA is proposed for UAVs task assignment. UAVs search for targets and try to form coalition when they find targets. Once formed, the coalition members will adjust their paths to prosecute the target simultaneously to induce maximum damage. The simulation results show that using the proposed algorithm, UAVs can complete mission in short time. And the mission completion percentage keeps at a high level. The proposed algorithm is suitable for real-time application.

Research on the interworking between CORBA and intelligent network

To reduce costs and time for developing new services, the use of distributed object-oriented technology such as CORBA is recommended. This article discusses the introduction of CORBA technology into the intelligent network. A pragmatic approach to the design of the IN/CORBA gateway is outlined in order to facilitate the smooth interworking between the IN and CORBA domain. The performance test data of such an IN/CORBA gateway are given finally.

A study on IN call model for the support of multimedia services in IP network

With the fast development of IP telephony, there is a need to quickly provide more powerful and competitive multimedia services in the IP network. A natural choice is to integrate the intelligent network and IP network and exploit the mature capabilities of service creation and service deployment of the intelligent network in the IP network. This paper addresses a new call model between the intelligent network and the IP network for supporting the advanced multimedia service in the IP network using H.323. Firstly, the reason why the existing IN basic call state model is not suitable to model H.323 signaling are analyzed, then an enhanced call model based layered structure in order to fully exploit the advantages introduced by H.323 is proposed. Finally, we present an approach of the IP-SSP architecture based on the proposed model to fulfill the integration between the IN and IP.