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In this paper, we propose a distributed group signature scheme with traceable signers for mobile Ad hoc networks. In such scheme, there isn't a trusted center, and all members of Ad hoc group cooperate to generate all system parameters and all private/public keys. Any t members in Ad hoc group can collaboratively generate the group signature with the help of a designated clerk, where the signer respectively...
First of all, by using the Customer Perceived Service Quality and SERVPERF, the mobile network service evaluation model in the 3G era is established, the weights of the index is weighed and the effect is tested. Then the model is used to evaluate the current situation of the mobile network service of A company, and to find out the problems in data business, complaints and so on; also, the practical...
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