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On Feasibility of Multi-channel Reconfigurable Wireless Sensor Networks under Real-time and Energy Constraints
Ref: CISTER-TR-190108       Publication Date: Mar 2021

Abstract:
This paper deals with the medium between two reconfigurable sensor nodes characterized by radio interfaces that support multiple channels for exchanging real-time messages under energy constraints, these constraints are violated if the consumed energy in transmission is higher than the remaining quantity of energy. A reconfiguration, i.e., any addition or removal of tasks in devices and consequently of messages on the medium, can cause the violation of real-time or energy constraints at run-time. To achieve a feasible scheduling in time (i.e., message deadlines will be respected) and energy (i.e., there is available energy) on the medium, we propose new dynamic solutions: Balance, Dilute, and a combination of them to manage any addition or removal of messages. The proposed approach utilizes the energy harvesting techniques and PowerControl algorithm to reduce the non-harvested consumed energy. The proposed strategies achieve significant improvement over existing methods and provide the highest percentage of adding messages, with a lower average in response time and energy consumption. They reach a percentage of success in adding the highest priority messages while meeting deadlines up to 85%.

Yousra Ben Aissa

,

Abdelmalik Bachir

,

Mohamed Khalgui

,

Anis Koubâa

,

Zhiwu Li

,

Ting Qu

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