Liding Wang

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Energy efficiency and quality of service (QoS) are both essential issues in the applications of wireless sensor networks (WSNs) all along, which are mainly reflected in the development of routing and MAC protocols. However, there is little design for achieving the dual performances simultaneously. In this paper, we develop a practical passive cluster-based(More)
Node localization technology is one of the most important technologies in wireless sensor networks. Due to the advantages of saving and convenience, received signal strength indication (RSSI) technology is widely taken to measure the distance between the sensor nodes, and then trilateral localization algorithm which is one of the classic algorithms can(More)
The great development in micromanipulation technology has exigent request to develop image processing for microscopic images. Considering the characteristics of color microscopic images in micromanipulation imriging system and color information of color microscopic ima;ges, two wavelet transformation based methods in HSI color space and vector space for(More)
A thermal assisted ultrasonic bonding method for poly(methyl methacrylate) (PMMA) microfluidic devices has been presented. The substrates were preheated to 20-30 degrees C lower than glass transition temperature (T(g)) of the polymer. Then low amplitude ultrasonic vibration was employed to generate facial heat at the interface of PMMA substrates. PMMA(More)
Aimed at energy conservation and QoS requirement, a novel node-disjoint multipath routing protocol for wireless multimedia sensor networks is proposed in this paper. Source routing approach is adopted to generate multipath. By overall considering several attributes, the model of path efficiency is defined through fuzzy multiple criteria decision making(More)
Localization is one of the key technologies of wireless sensor networks. This paper presents a new hybrid localization algorithm developed based on Maximum Likelihood Estimation (MLE) and MAX-MIN algorithm, which improves localization accuracy. The conclusion is got from simulation experiments analysis that it's best for anchor nodes to be deployed around(More)