A MULTI TREE BASED APPROACH FOR PERFORMANCE ANALYSIS IN HIERARCHICAL WIRELESS SENSOR NETWORKS
Itu Snigdh, The Society of Digital Information and Wireless Communication · International Journal of Digital Information and Wireless Communications · 2014
A wireless sensor network consisting of heterogeneous sensors is capable of dealing with more than one type of information about any region at a time. Sensor applications that cater to disaster relief require faster data delivery and effective connectivity than the other monitoring applications. Moreover, usually, sensors collect a single type of data. Our approach focuses on generating a tree based communication architecture that is made up of three different types of sensors and ensures that at least one sensor of each type is connected to the communication backbone; thereby forming a MULTI-TREE. By responding to query initiated by the sink for one type of data at a time, the heterogeneous sensors ensure reduced amount of carried load and latency in data transmission. Our strategy implemented for structural health monitoring application shows that when compared to a minimum spanning tree under the same simulation constraints, performs better as it reduces the carried load and delay to one third under the existing set of ad hoc protocols.