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Articles by Ang Wei
Total Records ( 2 ) for Ang Wei
  Chunyao Fu , Wei Wei and Ang Wei
  As the routing protocols of Wireless Sensor Networks (WSNs), LEACH (low energy adaptive clustering hierarchy) has some shortcomings in algorithm, such as, the selection of cluster head is unreasonable and the node energy consumption is unbalanced, for these shortcomings, we propose an energy-saving algorithm LEACH-RA based on LEACH protocol. In LEACH-RA, all nodes are divided into fixed cluster, nodes in cluster adaptively select their cluster head according to the radius of their own clusters. We prove by NS2 simulation that the improved protocols effectively overcome the phenomenon of non-uniform of node energy consumption that is caused by the policy of randomly selecting cluster head. In this way, the life of network is extended.
  Ang Wei , F.U. Chunyao and Wei Wei
  In this study, a new method to acquire the decision rule of information system with continuous attributes was proposed. The modeling theory and the estimation method of partially linear auto-regression model are discussed and the lag variables, best model, the optimal bandwidth are determined. Partially linear auto-regression models of Shanghai stock index and Shenzhen component index based on partial residual estimate are established and the validity of the model are examined. Finally, forecasting with the model and judged the effect of the model based on the real data.
 
 
 
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