The ensuring reliability of wireless sensor networks (WSN) is one of most important problems to be solved. In this article, the influence of the security and communication factors in the reliability of wireless sensor networks was analyzed. Balancing security against performance in WSN is another issue to be solved. These factors should be considered during security analysis of quality of protection of realized protocol. In the article, we analyze wireless sensor network where hierarchical topologies is implemented with high performance routing sensors that forward big amount of data. We present the experiment results which were performed by high-performance Imote2 sensor platform and TinyOS operating system.
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