Logical Sensor Network: An Abstraction of Sensor Data Processing over Multidomain Sensor Network

Figure 4

Comprehensive combination of numbers of input and output stream for a node.

(a) Source (a physical sensor)

(b) Filter (e.g., low pass, high pass)

(c) Multiplexer (e.g., fourier trans.)

(d) Aggregator (e.g., average, max)

(e) Organizer (e.g., probability dist.)

(f) Sink (an application)