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Despite the increasing popularity and the perceived promise of crowdsourcing, its openness presents individuals with an opportunity to exhibit antisocial behavior, such as free-ride and attack to decrease the social welfare, which is considered as a crowdsourcing contest dilemma. Hence, incentive mechanisms are needed to compel rational and selfish individuals to contribute well behavior in tasks...
Today's Internet mobility management is facing great challenges to satisfy the requirement of scalability and flexibility, such as heavy signaling overhead, data traffic centralization, etc. In this paper, some mobility management design principles concerning the trend of large-scale and high-density wireless network are given. A mobility management scheme is proposed according to these principles...
An essential component of threshold cryptography is to generate a distributed key based on univariate symmetric polynomials, where a constant fraction of the players can reconstruct the key. We, however, with rigorous proof of security, present a new distributed key generation (DKG) protocol, using bivariate symmetric polynomials. It is regarded as more efficient in computation, simpler and more flexible...
Data aggregation is an main method to conserve energy in wireless sensor network (WSN). Prior work on data aggregation protocols are generally based on static routing schemes, such as tree-based, cluster-based or chain-based routing schemes. Although they can save energy to some extent, in dynamic scenarios where the source nodes are changing frequently, they will not only incur high overhead to continuously...
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