Multisensor accuracy enhancement on the base of interval voting in form of preference aggregation in WSN for ecological monitoring

Energy-accuracy aware active node selection in wireless sensor networks

“…where X c h is a corrected value of measured quantity h, obtained by means of aggregation as described in [2], and X k h is a value of quantity h, provided by the k-th node. For every node the number of differences Δ is equal to the number of measured quantities p. Measurement results for p = 4 and n = 6 and corresponding differences Δ k h computed by formula (5) for h = 1, …, 4 and k = 1, …, 6 are shown in Table II.…”

“…Upon reception of the data from all CHs, the sink runs the algorithm based on interval voting in form of preference aggregation, presented in [2], to calculate corrected values X c h for all p measured quantities. Obtained X c h are passed to the next round for multisensor general accuracy estimation.…”

“…In such cluster topology, the aim is to select a set of sensor nodes that consumes minimum energy in each cluster and at the same time provides enough data for determining accurate values of the measured quantities by means of algorithm described in [2].…”

“…In [2] an approach of multisensor accuracy enhancement, which allows to obtain accurate measurement results based on inaccurate sensor readings by means of interval voting in form of preference aggregation, is proposed. According to the approach, sensor nodes located in the same observable area in one cluster within communication range of each other (neighboring nodes) jointly carry out synchronous measurements of the same quantity.…”

“…ANSS algorithm in combination with the approach, presented in [2], is directed to energy consumption minimization while keeping required accuracy level. The paper is organized as follows.…”