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In Clustered-Underwater Wireless sensor networks (CUWSNs), battery operated sensing devices are grouped and connected with each other through wireless interfaces. Energy and processing efficiency are the two important parameters in these systems. CUWSNs with reduced number of transmissions utilize less energy and prolong the lifetime of the network. In this paper, a new protocol is proposed which...
In this paper, we derive optimal likelihood based fusion rule and sub-optimal rule in mixing two-hop cluster based wireless sensor networks. The likelihood ratio rule has been shown the most optimal. However, it acquires channel knowledge and node performance which is not easily available for resource constrained sensor networks. The sub-optimal fusion rules need less computation and information....
We analyze a medium access control (MAC)-free ??alternating sets?? transmission strategy for a two-dimensional strip-shaped network. This may be viewed as a broadcast strategy if the entire network has a strip shape, or it may be viewed as a unicast strategy if there is a set of pre-designated cooperators along a conventional multi-hop route, which we refer to as a cooperative route. When there are...
We address the problem of generating customized, controlled interference for experimental and testing purposes in wireless sensor networks. The known coexistence problems between electronic devices sharing the same ISM radio band drive the design of new solutions to mitigate interference. The validation of these techniques and the assessment of protocols under external interference require the creation...
The paper describes the necessary fields investigated for creating an application that is able to monitor any kind of network, wired or wireless, with all its possible aspects. In the same application, we also implemented original algorithms for finding the position of a moving station, utilizing the signal level of the wireless protocols 802.11 devices (Wi-Fi). Field research and exhausting sampling...
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