Date Added: Apr 2013
Designing an accurate and efficient trust model in WSN is now-a-days a research challenge. Trust in Wireless Sensor Networks is an important issue and it solves the problem of access control, privacy, secure routing scheme and reliable communication. The notion of trust can be defined as an aggregation of consensus given a set of past interactions. Aggregating data is a way of compressing the transmitted packet, in a sense that the packet is comprised of only necessary information. This paper presents, total trust calculation in WSN nodes. The authors calculate the total trust by direct trust using probabilistic approach and indirect trust using Dempstar-Shafer theory (combination of evidence).