Investigating the Energy Sink-Hole Problem in Connected $k$ -Covered Wireless Sensor Networks

2014 ◽  
Vol 63 (11) ◽  
pp. 2729-2742 ◽  
Author(s):  
Habib M. Ammari
2017 ◽  
Vol 14 (1) ◽  
pp. 146-150
Author(s):  
Xiaohui Wang ◽  
Tongqian Peng

Maximizing the network lifetime is one of design challenges for data transmission in wireless sensor networks (WSNs) which is caused by the energy sink-hole problem. Recent researches show the energy sink-hole problem can be overcome by balancing the sensor energy consumptions. The paper proposes a new energy-balanced transmission scheme for maximizing network lifetime in wireless sensor networks, which focused on the corona-based WSN only with two coronas and we simulate the network base on the different radius of coronas because experiments show that the lifetime of corona-based WSN using two coronas is optimum for maximizing lifetime in the free space environments. Experimental simulation shows that the design method maximizes lifetime more than 10% than the existing methods.


Author(s):  
Mohammed D. Aljubaily ◽  
Imad Alshawi

The existence of a mobile sink for gathering data significantly extends wireless sensor networks (WSNs) lifetime. In recent years, a variety of efficient rendezvous points-based sink mobility approaches has been proposed for avoiding the energy sink-holes problem nearby the sink, diminishing buffer overflow of sensors, and reducing the data latency. Nevertheless, lots of research has been carried out to sort out the energy holes problem using controllable-based sink mobility methods. However, further developments can be demonstrated and achieved on such type of mobility management system. In this paper, a well-rounded strategy involving an energy-efficient routing protocol along with a controllable-based sink mobility method is proposed to extirpate the energy sink-holes problem. This paper fused the fuzzy A-star as a routing protocol for mitigating the energy consumption during data forwarding along with a novel sink mobility method which adopted a grid partitioning system and fuzzy system that takes account of the average residual energy, sensors density, average traffic load, and sources angles to detect the optimal next location of the mobile sink. By utilizing diverse performance metrics, the empirical analysis of our proposed work showed an outstanding result as compared with fuzzy A-star protocol in the case of a static sink.


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