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As an important mechanism designed to counteract temptation and promote cooperation, reputation is widely investigated in the spatial Prisoners’ dilemma game. Existing research assumes that each agent imitates the neighbor that has the highest reputation with an inferring reputation probability pi, which is heterogeneous and enhances cooperation to some extent. So far the effect of heterogeneity has...
In this paper, we propose some technologies of multi-biometric feature identification, and present a framework of biometric identification system. The contributions of this paper include the following aspects: (1) the information of biological features are prevented from being forged or modified in network transmission by using a scrambling encryption algorithm of Semi-Fragile Watermarking(SFW) which...
A new user scheduling strategy is proposed for multiuser MIMO system with random unitary beamforming (RUB) in this paper. This strategy imposes a threshold on the signal to interference and noise ratio (SINR) of mobile users to reduce the feedback load. The basestation only uses those beams that are requested by feedback users. The exact analytical expression of the sum rate of proposed strategy is...
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