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دانلود رایکان مقاله انگلیسی ISI با موضوع تحقیق در زمینه موضوعات اتصال و پوشش در شبکه های حسگر بی سیم

عنوان فارسی مقاله:

تحقیق در زمینه موضوعات اتصال و پوشش در شبکه های حسگر بی سیم

عنوان انگلیسی مقاله:

A survey on coverage and connectivity issues in wireless sensor networks

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7. Simulation tools 

Nowadays simulation tools of WSNs have been widely used, due to two serious limitations of the physics experimental platform (Shu et al., 2008). The first one is large scale, for what it is very expensive to buy a large number of sensor nodes until today. Especially, the cost for building a large scale platform of WSNs is also not acceptable for most academic researchers. The second one is non-replicable environment, for some specific applications, e.g., monitoring an erupting volcano, deploying a test-bed may cause serious damage. Fortunately, using simulation tools, researchers can study the WSNs in the environment which can be controlled, and observe the nodes mutual function caused by the disturbance and the noise. Researchers can gain nodes detail to improve the network success ratio and reduce network maintenance works. Although there are many simulators for WSN, our focus is on coverage and connectivity. Typical simulation tools used in the field of coverage and connectivity are described as follows.