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Article Dans Une Revue Journal of King Saud University - Computer and Information Sciences Année : 2022

Power-saving system designs for hexagonal cell based wireless sensor networks with directional transmission

Résumé

This paper examines the lifetimes of alternative system configurations for a wireless sensor network (WSN) in a circular region. The coverage region is divided into hexagonal cells, and the information from each cell is combined and transmitted to the sink or to other cells. Sensors are equipped with directional antennas that improve transmit/receive power efficiency and potentially reduce interference. Simultaneous transmission to multiple cells is permitted, and the power level of different transmissions can be controlled to different levels. Under the assumptions of uniform information density and uniform sensor distribution, we show that for larger systems (with 800 cells or more) lifetime can be prolonged by more than 10 times by introducing a limited number of transmission lines or line sinks to facilitate information transfer to the main sink. Alternatively, introducing up to six secondary sinks can increase the system lifetime by a factor of about 4.5 for the same size region. Our results imply that incorporating line or secondary sinks may provide simple, low-cost solutions for extending system lifetime for larger WSN's.
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Dates et versions

hal-03888958 , version 1 (19-12-2022)

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Arouna Njoya, Christopher Thron, Marah Nana Awa, Ado Adamou Abba Ari, Abdelhak Mourad Gueroui. Power-saving system designs for hexagonal cell based wireless sensor networks with directional transmission. Journal of King Saud University - Computer and Information Sciences, 2022, 34 (10, Part A), pp.7911-7919. ⟨10.1016/j.jksuci.2022.07.008⟩. ⟨hal-03888958⟩
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