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Mobile Commerce is the new development of e-commerce which takes on strong potential for its convenient, efficient and omnipresent characters. This paper analyses the security hole of traditional application model based on SMS, and designs a novel security model of mobile commerce. This model utilizes SMS-gateway and CMPP proxy module joined with server security to carry out the data communication...
There are many challenges of using all kinds of handheld devices as learning tools, that can connect to the Remote Learning System by cable or wireless network and then browser the downloaded course contents. First of all, network connection, especially wireless link, is usually not persistent and wireless coverage is often limited. In this case, the handheld learning devices become useless and the...
The paper introduces the push-based way and pull-based way of broadcasting technologies of mobile database and the model of index, and also describes common index in the field of mobile broadcast. Based on the merits of bitmap index and hash index, it acquires a combined index which were evaluated by the experiments.
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