Yuanzhe Yao

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Corresponding to the storing and fast searching needs of an extra-large scale of energy monitoring and statistics data, we propose a multi-level-indexed distributed hash table (mDHT) algorithm and complete a MapReduce implementation of the algorithm on the open-standard HDFS/Hbase platform. Such an approach uses a columnar storage structure for energy(More)
Wireless technologies and vehicle-mounted or wearable medical sensors are pervasive to support ubiquitous healthcare applications. However, a critical issue of using wireless communications under a healthcare scenario rests at the electromagnetic interference (EMI) caused by radio frequency transmission. A high level of EMI may lead to a critical(More)
In this paper, a novel application research on memristor is studied, and memristor-based chaotic circuit for text, image encryption and decryption is presented. In light of memristor characteristic, nonlinear circuit and chaotic cryptography, a new cryptosystem model of memristor-based chaotic circuit is designed. Then, text, image encryption and decryption(More)
Wireless sensor network (WSN) is the basic and interesting areas among practitioners and researchers in various fields. As sensor nodes are prone to environmental changes and external agents. That's why it is becoming necessary to organize the wireless sensor network which is secure, energy efficient and has prolonged network life. The organization of(More)
This paper studies two online scheduling problems on parallel machines that process computing jobs arriving stochastically in a batch pattern. With the objective function as minimizing total completion time of weighted jobs or minimizing total latency of job completion, we propose two solutions for above scheduling problems, respectively. With the(More)
A device-to-device (D2D) assisted cellular network is pervasive to support ubiquitous healthcare applications, since it is expected to bring the significant benefits of improving user throughput, extending the battery life of mobiles, etc. However, D2D and cellular communications in the same network may cause cross-tier interference (CTI) to each other.(More)