Tuesday, April 6, 2010

8 years


Focus on Enterprise SAP implementation for more than 8 years, especially including 6 years Retail industry experience, and be very experienced about large-size project management and solution architecture. (PetroChina Services-station and C-Store Retailing, ralph lauren polo shirts, 958598 3C Retailing, BIRD high-tech, bird-Sagem, SAP Best-Practices etc.) Ever worked at different countries (US, Germany, Korean, India, Malaysia etc. ) with global collaboration.

MPCR uses timers to measure the residual Cheap Lacoste Polo Shirts energy of the nodes, which allows the node to become the head node of the cluster if the residual energy of the node is larger than the others by shortening the timing length of the node. Then, the head node of the cluster broadcasts a message in the scope of D and those nodes which receive this polo shirts message will become a non-head node of the cluster. Consequently, the head nodes of the chi hair straighteners cluster are distributed uniformly in the network. Secondly, in the routing phase between the Lacoste Polo Shirts clusters, if the head node of the cluster communicates directly with the base station in the routing process between the clusters, it causes those nodes far away from the SINK to dissipate energy fast and results in the uneven distribution of the energy. In order to overcome this problem, researches on the strategy of multi-hop have been largely adopted in the worldwide area, which lead to a "hot spot" problem. So, in order to build a routing table of the next hop for the head node of the cluster, it operates in a custom made prom dresses way that is to choose a node according to the weigh value of the node. The node will be chosen as the next hop of the routing table if the weigh value of the node is lower than the other nodes. However, when the changing range of the node energy exceeds the thresholdΔE, the routing table of the next hop for the node would be refreshed, through deleting the routing nodes which have become the "hot spot" . Then, every head node of cluster has several paths that are multi-hop to communicate the data to the SINK. Therefore, it not only realizes the routing of the multi paths, but also solves the "hot spot" problem in multi-hop.Finally, the simulation of three cluster-based routing algorithms that is LEACH, EEUC and the algorithm provided in the paper MPCR has been implemented. The result shows that the improved algorithm MPCR performs better than LEACH, EEUC in terms of network lifetime, network energy consumption and balance of the death of nodes.
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