Dynamic programming based optimal renewable energy allocation in sustained wireless sensor networks

2018 ◽  
Vol 10 (6) ◽  
pp. 063705 ◽  
Author(s):  
Amandeep Sharma ◽  
Ajay Kakkar
Keyword(s):  
Wireless Sensor Networks ◽  
Dynamic Programming ◽  
Renewable Energy ◽  
Sensor Networks ◽  
Energy Allocation ◽  
Wireless Sensor

Maximizing lifetime sequences of wireless sensor networks powered by renewable energy

Sensor Review ◽  
2014 ◽  
Vol 34 (4) ◽  
pp. 374-381 ◽  
Author(s):  
Amjad Abu-Baker ◽  
Hong Huang ◽  
Satyajayant Misra
Keyword(s):  
Wireless Sensor Networks ◽  
Renewable Energy ◽  
Sensor Networks ◽  
Renewable Energy Sources ◽  
Base Station ◽  
Good News ◽  
Wireless Sensor ◽  
Content Type ◽  
Practical Applications ◽  
Multiple Sensors

Purpose – The purpose of this paper is to investigate conditional and unconditional lifetime sequence of wireless sensor networks (WSN) that have many important practical applications. A significant limitation for WSN is its short lifetime due to the limited capacity of the battery. Renewable energy can significantly extend the lifetime of WSN. In this paper, we investigate the whole sequence of lifetimes of every sensor in WSN, as different application scenarios have different requirement on how many sensors can die until the WSN is no longer functional. Design/methodology/approach – Linear programming formulation was used to investigate both the conditional and unconditional lifetime sequence of WSN. The lifetime sequences of WSN without and with differ levels of solar power were studied. Findings – This investigation of lifetime sequences discovered three interesting phenomena: the sensors that die first are on the peripheral of the network, rather close to the base station; multiple sensors tend to die simultaneously; and the lifetimes of sensors that die later can be extended by renewable energy much more significantly than those that die early, which is very good news to applications that can tolerate the death of a fraction of sensors. Originality/value – In this paper, the first optimization formulation for maximizing both unconditional and conditional lifetime sequences of WSNs with renewable energy sources was provided. Only the conditional lifetime sequence has been investigated in a previous work, but this method runs n-times faster than the previous work, with n being the number of nodes in the WSN.

Utility-Based Energy Allocation Optimization in Wireless Sensor Networks

2011 ◽  
Vol 30 (9) ◽  
pp. 2271-2275
Author(s):  
Sheng-bin Liao ◽  
Wen-qing Cheng ◽  
Wei Liu ◽  
Zong-kai Yang ◽  
Yi Ding
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Energy Allocation ◽  
Wireless Sensor
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