Q.-X. Zhu's scientific contributions

Publications (5)

Article
The optimal search problem for a randomly moving target perturbed by a Brownian motion is considered in this paper. Firstly, an optimal control model for the search problem is introduced. Based on the principle of optimality, the search problem is then transformed to an equivalent problem of deterministic distributed parameters system, represented...
Article
Extending the ring signature scheme for individual person, a novel ring signature scheme for general subsets of a group is proposed. In the scheme, the members of signing subset firstly construct a group including themselves, then construct a set of subsets including the signing subset, namely the authorized subsets. The signature is generated by c...
Article
In order to distribute the power of verifying the signature of a message, this paper proposed a new (T, N) threshold shared verification signature scheme with specified receiving groups. The signature can only be verified by the cooperation of T or more individuals out of N group members. The scheme is on the basis of Shamir's threshold secret shar...
Article
This paper presents a UML-based method for XML Schema design. The method includes three phases: conceptual, logical and physical level design. Standard UML class diagram is utilized in conceptual level, customized logical UML class diagram is utilized in logical level and textual XML Schema document is available in physical level. Fully taken consi...
Article
In order to prolong the network lifetime, energy-efficient protocols should be designed to adapt the characteristic of wireless sensor networks. Clustering Algorithm is a kind of key technique used to reduce energy consumption, which can increase network scalability and lifetime. This paper studies the performance of clustering algorithm in saving...

Citations

... As WSNs having ad hoc topology without infrastructure, identifying path and then forwarding data to the sink is the quite interesting and difficult task (Deepa and Suguna 2020). Moreover, effective routing protocol, device placement, and the topology management techniques are introduced for extending heterogeneous WSNs lifetime (Qing et al. 2006). Nowadays, various protocols, namely Rumor, Energy, Gradient based routing and so on are introduced, termed as the data-centered oriented protocol (Dhumane and Prasad 2017). ...