Zhongliang Liang

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—Traditional wireless sensor networks (WSNs) working in the license-free spectrum suffer from uncontrolled interference as the license-free spectrum becomes increasingly crowded. Designing a WSN based on cognitive radio can be promising in the near future in order to provide data transmissions with quality of service requirements. In this paper we introduce(More)
Many of today’s networks are Heterogeneous Multi-tier Networks, consisting of wired, Ad-hoc, and wireless sensor nodes. Each node type requires a management system and method to retrieve management data from the nodes. Management of the Heterogeneous Multi-tier Network can be daunting, requiring multiple management systems and manual data aggregation and(More)
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