Device-to-Device (D2D) communication has become a promising candidate in future cellular networks to improve spectrum efficiency and energy efficiency, while reducing the latency. As the capacity of D2D user equipments (DUEs) increases, it makes DUEs caching possible, and it can offload traffic from macro base stations, perform computation-intensive and latency-critical tasks. In this paper, in-band communication is considered, and the Poisson cluster process is utilized to model and analyze the clustered D2D networks under cluster-centric caching strategy. Firstly, we use the Thomas cluster process to model cellular user equipments (CUEs) and DUEs, and give a deployment scheme of clustered D2D caching networks. Secondly, the aggregated interference of the typical D2D receiver is analyzed in the clustered D2D networks. Then the Laplace transform of the aggregated interference is analyzed, and the expressions of coverage probability, average achievable rate and cache hit probability of the typical D2D receiver are deduced. The simulation results show that we can adjust the path loss exponent, densities of DUEs and CUEs, transmitting power of CUEs, mean of simultaneously active transmitters in each cluster and Zipf exponent to improve the performance of clustered D2D caching networks.

In this paper, the concepts and characteristics of SoftMan and SoftMan Group are introduced. And SoftMan is a virtual robot which has characteristics of distributed mobile agent, Robot and Artificial Life living in network. The characteristics of research platform for SoftMan are introduced. The model of SoftMan about fitness, physiological development, self-reproduce and sport is given, and architecture for SoftMan group based on Intelligent Autonomous Decentralized Systems is proposed. This architecture introduces inner data structures, function modules and database of SoftMan. At the same time, SoftMan communication model with multi-level hierarchical architecture on the basis of Client/Server Model and Peer-To-Peer Model is put forward. This model has the merits of the two models discussed above.

The defects of traditional ERP (enterprise resource planning) system are analyzed. The application feasibility of intelligent autonomous decentralized system to the structure of ERP system are discussed. The architecture of distributed intelligent ERP system is presented. It has some advantages such as intelligence, reengineering and flexibility. Moreover, the integration of material- flow, capital-flow and information-flow in ERP system is analyzed. The implementing model of ERP system based on Intelligent Autonomous Decentralized System is presented.