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Li Y.,Institute of Communications Engineering | He M.,Institute of Command Automation | Han Y.,NUDT
International Journal of Digital Content Technology and its Applications | Year: 2011

A game-theoretic framework was used to study the effect of modulation on the energy efficiency of cognitive CDMA (Code Division Multiple Access) communications for adaptive modulation. We designed an adaptive utility function which can link modulation, rate and power control. Since users are selfish and rational, a non-cooperative game was proposed, in which each user chose transmit power, transmit symbol rate as well as the modulation in order to maximize its own utility. Compared with a similar approach, our proposed algorithm can improve performance significantly. Source


Wang H.,Institute of Communication Engineering | Song L.,Institute of Command Automation
Advanced Materials Research | Year: 2011

Mobile peer to peer system in Ad hoc network is a brand novel application system. In this paper backgrounds and basic concepts of mobile peer to peer (p2p) systems are introduced firstly. Then possible applications of mobile p2p systems are expounded. Afterwards, technical challenges which mobile p2p system must face are analyzed in detail. In the end, the developments and implementation of mobile p2p system are explored and some conclusions are given. © (2011) Trans Tech Publications Switzerland. Source


Liu W.,Nanjing University of Information Science and Technology | Liu J.,Nanjing University of Information Science and Technology | Cui M.,Nanjing University of Information Science and Technology | He M.,Institute of Command Automation
Proceedings - 4th International Conference on Genetic and Evolutionary Computing, ICGEC 2010 | Year: 2010

With utilizing some quantum mechanism into the game theory, quantum game theory provides us with the ability to achieve results not otherwise possible. In this paper, a brief overview of classical game theory and some game-theoretic terms are depicted. Then, an introduction to quantum theory is presented as well as some correlative works in this field. Finally, some well-known quantum games are analyzed and discussed, which shows its predominant effect on some games problems (the Prisoners' Dilemma, Parrondo's Games, etc.). © 2010 IEEE. Source


Yang Y.,Institute of Command Automation | Hu G.,Institute of Command Automation | Guo S.,Institute of North Electronic Equipment | Yu S.,Institute of North Electronic Equipment
Proceedings - 2010 1st International Conference on Pervasive Computing, Signal Processing and Applications, PCSPA 2010 | Year: 2010

Now botnets have become the great threat of Internet Security. To be well prepared for future attacks, it is not enough to study how to defend against the botnets that have appeared in the past. More importantly, we should study advanced botnet designs that could be developed in the near future. In this paper, we present the improved design of an advanced hybrid P2P routing algorithm. The first method is based on the distinguish treatment between servent bots and client bots, introduce a connective table into the construction procedure of P2P network, combine with the concept of Maximum Connective Degree(MCD), design a self-adaptive routing algorithm which made the P2P architecture reach a well-balanced connectivity automatically; the second improvement is use dual-channel mechanism to add a special backdoor, which greatly enhanced the robustness of P2P network. © 2010 IEEE. Source


Qiu H.,Institute of Command Automation | Hu R.,Institute of Command Automation | Shi T.,Shandong University
CSAE 2012 - Proceedings, 2012 IEEE International Conference on Computer Science and Automation Engineering | Year: 2012

Traditional UDDI does not have the capability to process semantic and match to the ser vice attribute, which results in a low recall rate and matching rate. Through the service matching framework of Multi-agent, a Petri net based OWL-S semantic matching mechanism is proposed to de al with the shortcoming, in which PNSDL description language was used to publish and request services. In virtue of the P N's ability for describing we b service, the matching mechanism uses the possibility and necessity to quantify the confidence levels that the service could satisfy a request, so as to finish the matching of service. The matching mechanism has the advantage of powerful ability to process, model for Multiservice, high reality of matching and high matching rate, etc. © 2012 IEEE. Source

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