ACHIEVING RELIABILITY USING MOBILE DATA COLLECTORS IN WIRELESS SENSOR NETWORKS

Sensor networks are characterized by limited energy, processing power, and bandwidth capabilities. These limitations become particularly critical in the case of event-based sensor networks where multiple collocated nodes are likely to notify the sink about the same event, at almost the same time. The propagation of redundant highly correlated data is costly in terms of system performance, and results in energy depletion, network overloading and
congestion. Data aggregation is regarded as an effective technique to reduce energy consumption and prevent congestion. In this paper, we mainly focus on improving the lifetime of the network by achieving the reliability using Mobile Data Collectors .The cluster is formed which consists of few nodes. The cluster head collects the data of all the nodes in that cluster and it acts as a Data Collector. The Data collector aggregates the data arrives from all the nodes and forward it to the Base station .By aggregating the data ,the energy spend for sending the data from the
data collector to the base station is minimized which helps in achieving the reliability. The data collector should select the shortest path to the base station which increases the reliability. In this proposed system, the movement(Current location) of data collector is analysed using the improved distribution algorithm and compare it with the analysis done using normal distribution and centralised algorithm which should result in improvement in the reliability and network lifetime